- 1(current)
Q. No.A monoatomic ideal gas undergoes a process given by the equation: \({\dfrac{pT}{V}}=\text{constant.}\) The molar specific heat capacity in the process equals:
| 1. | \({\dfrac{3}{2}}R\) | 2. | \({\dfrac{5}{2}}R\) |
| 3. | \({\dfrac{1}{2}}R\) | 4. | zero |
Subtopic: Â Molar Specific Heat |
Level 3: 35%-60%
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The molar specific heat (at constant volume) of a monoatomic ideal gas is \(C_v={\Large\frac32}R\) while that of a diatomic ideal gas is \(C_v={\Large\frac52}R,\) where \(R\) is the universal gas constant. The molar specific heat (at constant pressure) of an equimolar mixture of the two will be:
| 1. | \(\dfrac{1}{2}\left ( \dfrac{3}{2}R+\dfrac{5}{2}R \right )\) | 2. | \(\left(\dfrac23+\dfrac25\right)^{-1}R\) |
| 3. | \(3R\) | 4. | \(\dfrac{8}{15}R\) |
Subtopic: Â Molar Specific Heat |
 61%
Level 2: 60%+
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Two gases having molar specific heats \(C_{P_{\large1}}\) & \(C_{P_{\large2}}\) are mixed in the molar ratio \(1:1.\) The molar specific heat of the mixture will be \(C_{P},\) where \(C_{P}=\)
| 1. | \(\dfrac{C_{P_{\large1}}+C_{P_{\large2}}}{2}\) | 2. | \(\dfrac{C^2_{P_{\large1}}+C^2_{P_{\large2}}}{C_{P_{\large1}}+C_{P_{\large2}}}\) |
| 3. | \(\sqrt{C_{P_{\large1}}\cdot C_{P_{\large2}}}\) | 4. | \(\dfrac{2C_{P_{\large1}}\cdot C_{P_{\large2}}}{C_{P_{\large1}}+C_{P_{\large2}}}\) |
Subtopic: Â Molar Specific Heat |
 73%
Level 2: 60%+
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Given below are two statements:
| Assertion (A): | The molar specific heat of water increases when it turns into steam at \(100^\circ\text C,\) under normal atmospheric pressure. |
| Reason (R): | Heat must be supplied to water at \(100^\circ\text C\) in order to convert it into steam at \(100^\circ\text C:\) this is referred to as the latent heat of vaporisation. |
| 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. | (A) is False but (R) is True. |
Subtopic: Â Molar Specific Heat |
 71%
Level 2: 60%+
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- 1(current)
Q. No.
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