Absolute Entropy and Third Law of Thermodynamics
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CHXI06:THERMODYNAMICS

369129 The correct statement regarding entropy is

1 at absolute zero temperature, entropy of a perfectly crystalline solid is zero
2 at absolute zero temperature, the entropy of a perfectly crystalline substance is + ve
3 at absolute zero temperature, the entropy of all crystalline substances is zero
4 at \(\mathrm{0^{\circ} \mathrm{C}}\), the entropy of a perfect crystalline solid is zero.
KCET - 2016
CHXI06:THERMODYNAMICS

369130 Which of the is the correct statement of third law of thermodynamics?

1 At absolute zero temperature, the entropy of perfectly crystalline substance is positive.
2 At absolute zero temperature, the entropy of perfectly crystalline substance is taken to be zero.
3 At \(\mathrm{0^{\circ} \mathrm{C}}\), the entropy of a perfectly crystalline substance is taken to be zero.
4 At absolute zero temperature, the entropy of all crystalline substance is taken to be zero.
CHXI06:THERMODYNAMICS

369131 The graph is plotted between the absolute entropy and the temperature
supporting img

1 \(\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\rm{I}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\rm{II}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\rm{III}}\)
\(\,\,\,\,\,\,\,\,\,\,{\rm{vapourisation}}\,\,\,\,\,\,\,\,\,\,{\rm{fusion}}\,\,\,\,\,\,\,\,\,\,{\rm{transition}}\)
2 \({\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} \,\,\,\,\,\,\,\,\,\,\,{\rm{fusion}}{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} \,\,\,\,\,\,\,{\rm{transition}}{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} \,\,{\rm{vapourisation}}\)
3 \({\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} \,\,\,\,\,\,\,\,\,\,{\rm{transition}}{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} \,\,\,\,\,\,{\rm{fusion}}{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} \,\,\,\,\,{\rm{vapourisation}}\)
4 \({\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} \,\,\,\,\,\,\,\,\,\,{\rm{transition}}{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} \,\,{\rm{vapourisation}}{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} \,\,\,{\rm{fusion}}\)
CHXI06:THERMODYNAMICS

369132 Assertion :
Entropy of all crystalline solids is taken as zero at absolute zero of temperature.
Reason :
At zero degree absolute, the constituent particles become completely motionless.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
CHXI06:THERMODYNAMICS

369252 Enthalpy of vaporization of benzene is +35.3 \(\mathrm{\mathrm{kJ} \mathrm{mol}^{-1}}\) at its boiling point, \(\mathrm{80^{\circ} \mathrm{C}}\). The entropy change in the transition of the vapour to liquid at its boiling point \(\left( {{\rm{inJ}}{{\rm{K}}^{{\rm{ - 1}}}}{\rm{\;mo}}{{\rm{l}}^{{\rm{ - 1}}}}} \right)\) is

1 \({\rm{ - 441}}\)
2 \({\rm{ - 100}}\)
3 \({\rm{ + 441}}\)
4 \({\rm{ + 100}}\)
KCET - 2010
NEET DIGITAL LIBRARY
CHXI06:THERMODYNAMICS

369129 The correct statement regarding entropy is

1 at absolute zero temperature, entropy of a perfectly crystalline solid is zero
2 at absolute zero temperature, the entropy of a perfectly crystalline substance is + ve
3 at absolute zero temperature, the entropy of all crystalline substances is zero
4 at \(\mathrm{0^{\circ} \mathrm{C}}\), the entropy of a perfect crystalline solid is zero.
KCET - 2016
CHXI06:THERMODYNAMICS

369130 Which of the is the correct statement of third law of thermodynamics?

1 At absolute zero temperature, the entropy of perfectly crystalline substance is positive.
2 At absolute zero temperature, the entropy of perfectly crystalline substance is taken to be zero.
3 At \(\mathrm{0^{\circ} \mathrm{C}}\), the entropy of a perfectly crystalline substance is taken to be zero.
4 At absolute zero temperature, the entropy of all crystalline substance is taken to be zero.
CHXI06:THERMODYNAMICS

369131 The graph is plotted between the absolute entropy and the temperature
supporting img

1 \(\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\rm{I}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\rm{II}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\rm{III}}\)
\(\,\,\,\,\,\,\,\,\,\,{\rm{vapourisation}}\,\,\,\,\,\,\,\,\,\,{\rm{fusion}}\,\,\,\,\,\,\,\,\,\,{\rm{transition}}\)
2 \({\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} \,\,\,\,\,\,\,\,\,\,\,{\rm{fusion}}{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} \,\,\,\,\,\,\,{\rm{transition}}{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} \,\,{\rm{vapourisation}}\)
3 \({\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} \,\,\,\,\,\,\,\,\,\,{\rm{transition}}{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} \,\,\,\,\,\,{\rm{fusion}}{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} \,\,\,\,\,{\rm{vapourisation}}\)
4 \({\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} \,\,\,\,\,\,\,\,\,\,{\rm{transition}}{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} \,\,{\rm{vapourisation}}{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} \,\,\,{\rm{fusion}}\)
CHXI06:THERMODYNAMICS

369132 Assertion :
Entropy of all crystalline solids is taken as zero at absolute zero of temperature.
Reason :
At zero degree absolute, the constituent particles become completely motionless.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
CHXI06:THERMODYNAMICS

369252 Enthalpy of vaporization of benzene is +35.3 \(\mathrm{\mathrm{kJ} \mathrm{mol}^{-1}}\) at its boiling point, \(\mathrm{80^{\circ} \mathrm{C}}\). The entropy change in the transition of the vapour to liquid at its boiling point \(\left( {{\rm{inJ}}{{\rm{K}}^{{\rm{ - 1}}}}{\rm{\;mo}}{{\rm{l}}^{{\rm{ - 1}}}}} \right)\) is

1 \({\rm{ - 441}}\)
2 \({\rm{ - 100}}\)
3 \({\rm{ + 441}}\)
4 \({\rm{ + 100}}\)
KCET - 2010
Join With Us for More Updates
CHXI06:THERMODYNAMICS

369129 The correct statement regarding entropy is

1 at absolute zero temperature, entropy of a perfectly crystalline solid is zero
2 at absolute zero temperature, the entropy of a perfectly crystalline substance is + ve
3 at absolute zero temperature, the entropy of all crystalline substances is zero
4 at \(\mathrm{0^{\circ} \mathrm{C}}\), the entropy of a perfect crystalline solid is zero.
KCET - 2016
CHXI06:THERMODYNAMICS

369130 Which of the is the correct statement of third law of thermodynamics?

1 At absolute zero temperature, the entropy of perfectly crystalline substance is positive.
2 At absolute zero temperature, the entropy of perfectly crystalline substance is taken to be zero.
3 At \(\mathrm{0^{\circ} \mathrm{C}}\), the entropy of a perfectly crystalline substance is taken to be zero.
4 At absolute zero temperature, the entropy of all crystalline substance is taken to be zero.
CHXI06:THERMODYNAMICS

369131 The graph is plotted between the absolute entropy and the temperature
supporting img

1 \(\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\rm{I}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\rm{II}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\rm{III}}\)
\(\,\,\,\,\,\,\,\,\,\,{\rm{vapourisation}}\,\,\,\,\,\,\,\,\,\,{\rm{fusion}}\,\,\,\,\,\,\,\,\,\,{\rm{transition}}\)
2 \({\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} \,\,\,\,\,\,\,\,\,\,\,{\rm{fusion}}{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} \,\,\,\,\,\,\,{\rm{transition}}{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} \,\,{\rm{vapourisation}}\)
3 \({\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} \,\,\,\,\,\,\,\,\,\,{\rm{transition}}{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} \,\,\,\,\,\,{\rm{fusion}}{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} \,\,\,\,\,{\rm{vapourisation}}\)
4 \({\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} \,\,\,\,\,\,\,\,\,\,{\rm{transition}}{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} \,\,{\rm{vapourisation}}{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} \,\,\,{\rm{fusion}}\)
CHXI06:THERMODYNAMICS

369132 Assertion :
Entropy of all crystalline solids is taken as zero at absolute zero of temperature.
Reason :
At zero degree absolute, the constituent particles become completely motionless.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
CHXI06:THERMODYNAMICS

369252 Enthalpy of vaporization of benzene is +35.3 \(\mathrm{\mathrm{kJ} \mathrm{mol}^{-1}}\) at its boiling point, \(\mathrm{80^{\circ} \mathrm{C}}\). The entropy change in the transition of the vapour to liquid at its boiling point \(\left( {{\rm{inJ}}{{\rm{K}}^{{\rm{ - 1}}}}{\rm{\;mo}}{{\rm{l}}^{{\rm{ - 1}}}}} \right)\) is

1 \({\rm{ - 441}}\)
2 \({\rm{ - 100}}\)
3 \({\rm{ + 441}}\)
4 \({\rm{ + 100}}\)
KCET - 2010
For More Updates join with Us
CHXI06:THERMODYNAMICS

369129 The correct statement regarding entropy is

1 at absolute zero temperature, entropy of a perfectly crystalline solid is zero
2 at absolute zero temperature, the entropy of a perfectly crystalline substance is + ve
3 at absolute zero temperature, the entropy of all crystalline substances is zero
4 at \(\mathrm{0^{\circ} \mathrm{C}}\), the entropy of a perfect crystalline solid is zero.
KCET - 2016
CHXI06:THERMODYNAMICS

369130 Which of the is the correct statement of third law of thermodynamics?

1 At absolute zero temperature, the entropy of perfectly crystalline substance is positive.
2 At absolute zero temperature, the entropy of perfectly crystalline substance is taken to be zero.
3 At \(\mathrm{0^{\circ} \mathrm{C}}\), the entropy of a perfectly crystalline substance is taken to be zero.
4 At absolute zero temperature, the entropy of all crystalline substance is taken to be zero.
CHXI06:THERMODYNAMICS

369131 The graph is plotted between the absolute entropy and the temperature
supporting img

1 \(\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\rm{I}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\rm{II}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\rm{III}}\)
\(\,\,\,\,\,\,\,\,\,\,{\rm{vapourisation}}\,\,\,\,\,\,\,\,\,\,{\rm{fusion}}\,\,\,\,\,\,\,\,\,\,{\rm{transition}}\)
2 \({\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} \,\,\,\,\,\,\,\,\,\,\,{\rm{fusion}}{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} \,\,\,\,\,\,\,{\rm{transition}}{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} \,\,{\rm{vapourisation}}\)
3 \({\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} \,\,\,\,\,\,\,\,\,\,{\rm{transition}}{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} \,\,\,\,\,\,{\rm{fusion}}{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} \,\,\,\,\,{\rm{vapourisation}}\)
4 \({\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} \,\,\,\,\,\,\,\,\,\,{\rm{transition}}{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} \,\,{\rm{vapourisation}}{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} \,\,\,{\rm{fusion}}\)
CHXI06:THERMODYNAMICS

369132 Assertion :
Entropy of all crystalline solids is taken as zero at absolute zero of temperature.
Reason :
At zero degree absolute, the constituent particles become completely motionless.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
CHXI06:THERMODYNAMICS

369252 Enthalpy of vaporization of benzene is +35.3 \(\mathrm{\mathrm{kJ} \mathrm{mol}^{-1}}\) at its boiling point, \(\mathrm{80^{\circ} \mathrm{C}}\). The entropy change in the transition of the vapour to liquid at its boiling point \(\left( {{\rm{inJ}}{{\rm{K}}^{{\rm{ - 1}}}}{\rm{\;mo}}{{\rm{l}}^{{\rm{ - 1}}}}} \right)\) is

1 \({\rm{ - 441}}\)
2 \({\rm{ - 100}}\)
3 \({\rm{ + 441}}\)
4 \({\rm{ + 100}}\)
KCET - 2010
NEET DIGITAL LIBRARY
CHXI06:THERMODYNAMICS

369129 The correct statement regarding entropy is

1 at absolute zero temperature, entropy of a perfectly crystalline solid is zero
2 at absolute zero temperature, the entropy of a perfectly crystalline substance is + ve
3 at absolute zero temperature, the entropy of all crystalline substances is zero
4 at \(\mathrm{0^{\circ} \mathrm{C}}\), the entropy of a perfect crystalline solid is zero.
KCET - 2016
CHXI06:THERMODYNAMICS

369130 Which of the is the correct statement of third law of thermodynamics?

1 At absolute zero temperature, the entropy of perfectly crystalline substance is positive.
2 At absolute zero temperature, the entropy of perfectly crystalline substance is taken to be zero.
3 At \(\mathrm{0^{\circ} \mathrm{C}}\), the entropy of a perfectly crystalline substance is taken to be zero.
4 At absolute zero temperature, the entropy of all crystalline substance is taken to be zero.
CHXI06:THERMODYNAMICS

369131 The graph is plotted between the absolute entropy and the temperature
supporting img

1 \(\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\rm{I}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\rm{II}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\rm{III}}\)
\(\,\,\,\,\,\,\,\,\,\,{\rm{vapourisation}}\,\,\,\,\,\,\,\,\,\,{\rm{fusion}}\,\,\,\,\,\,\,\,\,\,{\rm{transition}}\)
2 \({\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} \,\,\,\,\,\,\,\,\,\,\,{\rm{fusion}}{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} \,\,\,\,\,\,\,{\rm{transition}}{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} \,\,{\rm{vapourisation}}\)
3 \({\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} \,\,\,\,\,\,\,\,\,\,{\rm{transition}}{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} \,\,\,\,\,\,{\rm{fusion}}{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} \,\,\,\,\,{\rm{vapourisation}}\)
4 \({\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} \,\,\,\,\,\,\,\,\,\,{\rm{transition}}{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} \,\,{\rm{vapourisation}}{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} \,\,\,{\rm{fusion}}\)
CHXI06:THERMODYNAMICS

369132 Assertion :
Entropy of all crystalline solids is taken as zero at absolute zero of temperature.
Reason :
At zero degree absolute, the constituent particles become completely motionless.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
CHXI06:THERMODYNAMICS

369252 Enthalpy of vaporization of benzene is +35.3 \(\mathrm{\mathrm{kJ} \mathrm{mol}^{-1}}\) at its boiling point, \(\mathrm{80^{\circ} \mathrm{C}}\). The entropy change in the transition of the vapour to liquid at its boiling point \(\left( {{\rm{inJ}}{{\rm{K}}^{{\rm{ - 1}}}}{\rm{\;mo}}{{\rm{l}}^{{\rm{ - 1}}}}} \right)\) is

1 \({\rm{ - 441}}\)
2 \({\rm{ - 100}}\)
3 \({\rm{ + 441}}\)
4 \({\rm{ + 100}}\)
KCET - 2010