Statement I: | Pressure, molar heat capacity, density, mole fraction, specific heat, temperature, and molarity are intensive properties. |
Statement II: | Mass, internal energy, and heat capacity are extensive properties. |
Statement I: | The standard enthalpy change for the formation of one mole of a compound from its elements in their most stable states (reference states) is called standard molar enthalpy of formation. |
Statement II: | For, CaO(s)+ CO2 (g) → CaCO3(s) ; ∆fH⊝ = -178.3 kJmol-1 , the ∆rH⊝ is equal to the ∆fH⊝ . |
1. Both statements I and II are true.
2. Statement I is true and statement II is false.
3. Both statements I and II are false.
4. Statement I is false, statement II is true.
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. |