Gibbs Free Energy and Standard Free Energy Change
CHXI06:THERMODYNAMICS

369416 Assertion :
Salt such as \(\mathrm{NaCl}\) dissolves, the \(\mathrm{Na}^{+}\)and \(\mathrm{Cl}^{-}\)ions leaving the crystal lattice acquire far greater freedom.
Reason :
In thermodyanamic terms, the formation of solution occurs with a favourable change in free energy, i.e., \(\Delta \mathrm{H}\) has high positive value and \({\text{T}}\Delta {\text{S}}\) has a low negative value.

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

369417 Assertion :
Heat absorbed in a reaction at constant temperature and constant volume is \(-\Delta \mathrm{G}\).
Reason :
\(\Delta \mathrm{G}\) should be negative for the reaction to be spontaneous.

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

369418 Which of the following is not correct?

1 \({\rm{\Delta G}}\) is positive for a spontaneous reaction.
2 \({\rm{\Delta G}}\) is zero for a reversible reaction.
3 \({\rm{\Delta G}}\) is positive for non-spontaneous reaction.
4 \({\rm{\Delta G}}\) is negative for a spontaneous reaction.
CHXI06:THERMODYNAMICS

369419 For a reaction \(\mathrm{\mathrm{R}_{1}, \Delta \mathrm{G}=\mathrm{xkJ} \mathrm{mol}^{-1}}\). For a reaction \(\mathrm{\mathrm{R}_{2}, \Delta \mathrm{G}=\mathrm{y} \mathrm{kJ} \mathrm{mol}^{-1}}\). Reaction \(\mathrm{\mathrm{R}_{1}}\) is nonspontaneous but along with \(\mathrm{\mathrm{R}_{2}}\) it is spontaneous. This means that

1 \(\mathrm{x}\) is -ve, \(\mathrm{y}\) is +ve but in magnitude \(\mathrm{x>y}\)
2 \(\mathrm{x}\) is \(\mathrm{+v e}\), \(\mathrm{y}\) is -ve but in magnitude \(\mathrm{y>x}\)
3 Both \(\mathrm{x}\) and \(\mathrm{y}\) are -ve but not equal
4 Both \(\mathrm{x}\) and \(\mathrm{y}\) are + ve but not equal
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
CHXI06:THERMODYNAMICS

369416 Assertion :
Salt such as \(\mathrm{NaCl}\) dissolves, the \(\mathrm{Na}^{+}\)and \(\mathrm{Cl}^{-}\)ions leaving the crystal lattice acquire far greater freedom.
Reason :
In thermodyanamic terms, the formation of solution occurs with a favourable change in free energy, i.e., \(\Delta \mathrm{H}\) has high positive value and \({\text{T}}\Delta {\text{S}}\) has a low negative value.

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

369417 Assertion :
Heat absorbed in a reaction at constant temperature and constant volume is \(-\Delta \mathrm{G}\).
Reason :
\(\Delta \mathrm{G}\) should be negative for the reaction to be spontaneous.

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

369418 Which of the following is not correct?

1 \({\rm{\Delta G}}\) is positive for a spontaneous reaction.
2 \({\rm{\Delta G}}\) is zero for a reversible reaction.
3 \({\rm{\Delta G}}\) is positive for non-spontaneous reaction.
4 \({\rm{\Delta G}}\) is negative for a spontaneous reaction.
CHXI06:THERMODYNAMICS

369419 For a reaction \(\mathrm{\mathrm{R}_{1}, \Delta \mathrm{G}=\mathrm{xkJ} \mathrm{mol}^{-1}}\). For a reaction \(\mathrm{\mathrm{R}_{2}, \Delta \mathrm{G}=\mathrm{y} \mathrm{kJ} \mathrm{mol}^{-1}}\). Reaction \(\mathrm{\mathrm{R}_{1}}\) is nonspontaneous but along with \(\mathrm{\mathrm{R}_{2}}\) it is spontaneous. This means that

1 \(\mathrm{x}\) is -ve, \(\mathrm{y}\) is +ve but in magnitude \(\mathrm{x>y}\)
2 \(\mathrm{x}\) is \(\mathrm{+v e}\), \(\mathrm{y}\) is -ve but in magnitude \(\mathrm{y>x}\)
3 Both \(\mathrm{x}\) and \(\mathrm{y}\) are -ve but not equal
4 Both \(\mathrm{x}\) and \(\mathrm{y}\) are + ve but not equal
CHXI06:THERMODYNAMICS

369416 Assertion :
Salt such as \(\mathrm{NaCl}\) dissolves, the \(\mathrm{Na}^{+}\)and \(\mathrm{Cl}^{-}\)ions leaving the crystal lattice acquire far greater freedom.
Reason :
In thermodyanamic terms, the formation of solution occurs with a favourable change in free energy, i.e., \(\Delta \mathrm{H}\) has high positive value and \({\text{T}}\Delta {\text{S}}\) has a low negative value.

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

369417 Assertion :
Heat absorbed in a reaction at constant temperature and constant volume is \(-\Delta \mathrm{G}\).
Reason :
\(\Delta \mathrm{G}\) should be negative for the reaction to be spontaneous.

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

369418 Which of the following is not correct?

1 \({\rm{\Delta G}}\) is positive for a spontaneous reaction.
2 \({\rm{\Delta G}}\) is zero for a reversible reaction.
3 \({\rm{\Delta G}}\) is positive for non-spontaneous reaction.
4 \({\rm{\Delta G}}\) is negative for a spontaneous reaction.
CHXI06:THERMODYNAMICS

369419 For a reaction \(\mathrm{\mathrm{R}_{1}, \Delta \mathrm{G}=\mathrm{xkJ} \mathrm{mol}^{-1}}\). For a reaction \(\mathrm{\mathrm{R}_{2}, \Delta \mathrm{G}=\mathrm{y} \mathrm{kJ} \mathrm{mol}^{-1}}\). Reaction \(\mathrm{\mathrm{R}_{1}}\) is nonspontaneous but along with \(\mathrm{\mathrm{R}_{2}}\) it is spontaneous. This means that

1 \(\mathrm{x}\) is -ve, \(\mathrm{y}\) is +ve but in magnitude \(\mathrm{x>y}\)
2 \(\mathrm{x}\) is \(\mathrm{+v e}\), \(\mathrm{y}\) is -ve but in magnitude \(\mathrm{y>x}\)
3 Both \(\mathrm{x}\) and \(\mathrm{y}\) are -ve but not equal
4 Both \(\mathrm{x}\) and \(\mathrm{y}\) are + ve but not equal
CHXI06:THERMODYNAMICS

369416 Assertion :
Salt such as \(\mathrm{NaCl}\) dissolves, the \(\mathrm{Na}^{+}\)and \(\mathrm{Cl}^{-}\)ions leaving the crystal lattice acquire far greater freedom.
Reason :
In thermodyanamic terms, the formation of solution occurs with a favourable change in free energy, i.e., \(\Delta \mathrm{H}\) has high positive value and \({\text{T}}\Delta {\text{S}}\) has a low negative value.

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

369417 Assertion :
Heat absorbed in a reaction at constant temperature and constant volume is \(-\Delta \mathrm{G}\).
Reason :
\(\Delta \mathrm{G}\) should be negative for the reaction to be spontaneous.

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

369418 Which of the following is not correct?

1 \({\rm{\Delta G}}\) is positive for a spontaneous reaction.
2 \({\rm{\Delta G}}\) is zero for a reversible reaction.
3 \({\rm{\Delta G}}\) is positive for non-spontaneous reaction.
4 \({\rm{\Delta G}}\) is negative for a spontaneous reaction.
CHXI06:THERMODYNAMICS

369419 For a reaction \(\mathrm{\mathrm{R}_{1}, \Delta \mathrm{G}=\mathrm{xkJ} \mathrm{mol}^{-1}}\). For a reaction \(\mathrm{\mathrm{R}_{2}, \Delta \mathrm{G}=\mathrm{y} \mathrm{kJ} \mathrm{mol}^{-1}}\). Reaction \(\mathrm{\mathrm{R}_{1}}\) is nonspontaneous but along with \(\mathrm{\mathrm{R}_{2}}\) it is spontaneous. This means that

1 \(\mathrm{x}\) is -ve, \(\mathrm{y}\) is +ve but in magnitude \(\mathrm{x>y}\)
2 \(\mathrm{x}\) is \(\mathrm{+v e}\), \(\mathrm{y}\) is -ve but in magnitude \(\mathrm{y>x}\)
3 Both \(\mathrm{x}\) and \(\mathrm{y}\) are -ve but not equal
4 Both \(\mathrm{x}\) and \(\mathrm{y}\) are + ve but not equal