Spontaneity
CHXI06:THERMODYNAMICS

369505 Which of the following statements is correct for the spontaneous adsorption of a gas?

1 \(\mathrm{\Delta S}\) is negative and therefore, \(\mathrm{\Delta H}\) should be highly positive.
2 \(\mathrm{\Delta S}\) is negative and therefore, \(\mathrm{\Delta H}\) should be highly negative.
3 \(\mathrm{\Delta S}\) is positive and therefore, \(\mathrm{\Delta H}\) should be negative.
4 \(\mathrm{\Delta S}\) is positive and therefore, \(\mathrm{\Delta H}\) should also be highly positive.
CHXI06:THERMODYNAMICS

369506 Assertion :
Entropy of system increases for spontaneous reaction at all temperatures.
Reason :
Enthalpy of reaction always decreases for spontaneous reaction at all temperatures.

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

369507 Assertion :
A reaction which is spontaneous and accompanied by decrease of randomness must be exothermic.
Reason :
All exothermic reactions are accompanied by decrease in randomness.

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

369508 Read the following statements regarding spontaneity of a process and mark the appropriate choice
(I) When enthalpy factor is absent than randomness factor decides spontaneity of a process
(II) When randomness factor is absent then enthalpy factor decides spontaneity of a process.
(III) When both the factors take place simultaneously, the magnitude of both the factors decide spontaneity of a process.
Which of the following statement (s) is/are correct?

1 Only (i)
2 Only (ii)
3 Both (i), (ii)
4 All are correct
CHXI06:THERMODYNAMICS

369509 Identify the correct statement regarding a spontaneous process.

1 Lowering of energy is the only criterion for spontanity.
2 For a spontaneous process in an isolated system, the change in entropy is positive.
3 Endothermic processes are never spontaneous.
4 Exothermic processes are always spontaneous.
CHXI06:THERMODYNAMICS

369505 Which of the following statements is correct for the spontaneous adsorption of a gas?

1 \(\mathrm{\Delta S}\) is negative and therefore, \(\mathrm{\Delta H}\) should be highly positive.
2 \(\mathrm{\Delta S}\) is negative and therefore, \(\mathrm{\Delta H}\) should be highly negative.
3 \(\mathrm{\Delta S}\) is positive and therefore, \(\mathrm{\Delta H}\) should be negative.
4 \(\mathrm{\Delta S}\) is positive and therefore, \(\mathrm{\Delta H}\) should also be highly positive.
CHXI06:THERMODYNAMICS

369506 Assertion :
Entropy of system increases for spontaneous reaction at all temperatures.
Reason :
Enthalpy of reaction always decreases for spontaneous reaction at all temperatures.

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

369507 Assertion :
A reaction which is spontaneous and accompanied by decrease of randomness must be exothermic.
Reason :
All exothermic reactions are accompanied by decrease in randomness.

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

369508 Read the following statements regarding spontaneity of a process and mark the appropriate choice
(I) When enthalpy factor is absent than randomness factor decides spontaneity of a process
(II) When randomness factor is absent then enthalpy factor decides spontaneity of a process.
(III) When both the factors take place simultaneously, the magnitude of both the factors decide spontaneity of a process.
Which of the following statement (s) is/are correct?

1 Only (i)
2 Only (ii)
3 Both (i), (ii)
4 All are correct
CHXI06:THERMODYNAMICS

369509 Identify the correct statement regarding a spontaneous process.

1 Lowering of energy is the only criterion for spontanity.
2 For a spontaneous process in an isolated system, the change in entropy is positive.
3 Endothermic processes are never spontaneous.
4 Exothermic processes are always spontaneous.
CHXI06:THERMODYNAMICS

369505 Which of the following statements is correct for the spontaneous adsorption of a gas?

1 \(\mathrm{\Delta S}\) is negative and therefore, \(\mathrm{\Delta H}\) should be highly positive.
2 \(\mathrm{\Delta S}\) is negative and therefore, \(\mathrm{\Delta H}\) should be highly negative.
3 \(\mathrm{\Delta S}\) is positive and therefore, \(\mathrm{\Delta H}\) should be negative.
4 \(\mathrm{\Delta S}\) is positive and therefore, \(\mathrm{\Delta H}\) should also be highly positive.
CHXI06:THERMODYNAMICS

369506 Assertion :
Entropy of system increases for spontaneous reaction at all temperatures.
Reason :
Enthalpy of reaction always decreases for spontaneous reaction at all temperatures.

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

369507 Assertion :
A reaction which is spontaneous and accompanied by decrease of randomness must be exothermic.
Reason :
All exothermic reactions are accompanied by decrease in randomness.

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

369508 Read the following statements regarding spontaneity of a process and mark the appropriate choice
(I) When enthalpy factor is absent than randomness factor decides spontaneity of a process
(II) When randomness factor is absent then enthalpy factor decides spontaneity of a process.
(III) When both the factors take place simultaneously, the magnitude of both the factors decide spontaneity of a process.
Which of the following statement (s) is/are correct?

1 Only (i)
2 Only (ii)
3 Both (i), (ii)
4 All are correct
CHXI06:THERMODYNAMICS

369509 Identify the correct statement regarding a spontaneous process.

1 Lowering of energy is the only criterion for spontanity.
2 For a spontaneous process in an isolated system, the change in entropy is positive.
3 Endothermic processes are never spontaneous.
4 Exothermic processes are always spontaneous.
CHXI06:THERMODYNAMICS

369505 Which of the following statements is correct for the spontaneous adsorption of a gas?

1 \(\mathrm{\Delta S}\) is negative and therefore, \(\mathrm{\Delta H}\) should be highly positive.
2 \(\mathrm{\Delta S}\) is negative and therefore, \(\mathrm{\Delta H}\) should be highly negative.
3 \(\mathrm{\Delta S}\) is positive and therefore, \(\mathrm{\Delta H}\) should be negative.
4 \(\mathrm{\Delta S}\) is positive and therefore, \(\mathrm{\Delta H}\) should also be highly positive.
CHXI06:THERMODYNAMICS

369506 Assertion :
Entropy of system increases for spontaneous reaction at all temperatures.
Reason :
Enthalpy of reaction always decreases for spontaneous reaction at all temperatures.

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

369507 Assertion :
A reaction which is spontaneous and accompanied by decrease of randomness must be exothermic.
Reason :
All exothermic reactions are accompanied by decrease in randomness.

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

369508 Read the following statements regarding spontaneity of a process and mark the appropriate choice
(I) When enthalpy factor is absent than randomness factor decides spontaneity of a process
(II) When randomness factor is absent then enthalpy factor decides spontaneity of a process.
(III) When both the factors take place simultaneously, the magnitude of both the factors decide spontaneity of a process.
Which of the following statement (s) is/are correct?

1 Only (i)
2 Only (ii)
3 Both (i), (ii)
4 All are correct
CHXI06:THERMODYNAMICS

369509 Identify the correct statement regarding a spontaneous process.

1 Lowering of energy is the only criterion for spontanity.
2 For a spontaneous process in an isolated system, the change in entropy is positive.
3 Endothermic processes are never spontaneous.
4 Exothermic processes are always spontaneous.
CHXI06:THERMODYNAMICS

369505 Which of the following statements is correct for the spontaneous adsorption of a gas?

1 \(\mathrm{\Delta S}\) is negative and therefore, \(\mathrm{\Delta H}\) should be highly positive.
2 \(\mathrm{\Delta S}\) is negative and therefore, \(\mathrm{\Delta H}\) should be highly negative.
3 \(\mathrm{\Delta S}\) is positive and therefore, \(\mathrm{\Delta H}\) should be negative.
4 \(\mathrm{\Delta S}\) is positive and therefore, \(\mathrm{\Delta H}\) should also be highly positive.
CHXI06:THERMODYNAMICS

369506 Assertion :
Entropy of system increases for spontaneous reaction at all temperatures.
Reason :
Enthalpy of reaction always decreases for spontaneous reaction at all temperatures.

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

369507 Assertion :
A reaction which is spontaneous and accompanied by decrease of randomness must be exothermic.
Reason :
All exothermic reactions are accompanied by decrease in randomness.

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

369508 Read the following statements regarding spontaneity of a process and mark the appropriate choice
(I) When enthalpy factor is absent than randomness factor decides spontaneity of a process
(II) When randomness factor is absent then enthalpy factor decides spontaneity of a process.
(III) When both the factors take place simultaneously, the magnitude of both the factors decide spontaneity of a process.
Which of the following statement (s) is/are correct?

1 Only (i)
2 Only (ii)
3 Both (i), (ii)
4 All are correct
CHXI06:THERMODYNAMICS

369509 Identify the correct statement regarding a spontaneous process.

1 Lowering of energy is the only criterion for spontanity.
2 For a spontaneous process in an isolated system, the change in entropy is positive.
3 Endothermic processes are never spontaneous.
4 Exothermic processes are always spontaneous.