Assertion (A): | \(\Delta S_{system} > 0 \) as well as \(\Delta H > 0 \) passes from non-spontaneous to spontaneous state as temperature is increased. | A process for which
Reason (R): | \(T \Delta S \) exceeds \(\Delta H \). | At higher temperatures,
1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
3. | (A) is true but (R) is false. |
4. | Both (A) and (R) are false. |
Assertion (A): | The temperature of a gas does not change, when it undergoes an adiabatic expansion. |
Reason (R): | During an adiabatic process, the container should be a perfect conductor. |
1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
3. | (A) is true but (R) is false. |
4. | Both (A) and (R) are false. |
Assertion (A): | During an adiabatic process, heat energy is not exchanged between the system and its surroundings. |
Reason (R): | The temperature of a gas increases when it undergoes an adiabatic expansion. |
1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
3. | (A) is true but (R) is false. |
4. | Both (A) and (R) are false. |
Assertion (A): | Mass and volume are extensive properties. |
Reason (R): | Mass/volume is also an extensive parameter. |
1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
3. | (A) is true but (R) is false. |
4. | Both (A) and (R) are false. |
Assertion (A): | Absolute values of the internal energy of substances cannot be determined. |
Reason (R): | It is impossible to determine the exact values of constituent energies of the substances. |
1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
3. | (A) is true but (R) is false. |
4. | Both (A) and (R) are false. |
Assertion (A): | The increase in internal energy \((\Delta E ) \) for the vapourisation of one mole of water at 1 atm and 373 K is zero. |
Reason (R): | For all isothermal processes, \(\Delta E = 0 \). |
1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
3. | (A) is True and (R) is False. |
4. | (A) and (R) both are False. |