- 1(current)
Q. No.The molar specific heats of an ideal gas at constant pressure and volume are denoted by \(C_P\) and \(C_V,\) respectively. If \(\gamma =\frac{C_P}{C_V}\) and \(R\) is the universal gas constant, then \(C_V\) is equal to:
| 1. | \(\dfrac{R}{\gamma -1}\) | 2. | \(\dfrac{\gamma -1}{R}\) |
| 3. | \(\gamma R \) | 4. | \(\dfrac{\left ( \gamma -1 \right )R}{\left ( \gamma +1 \right )}\) |
Subtopic: Â Molar Specific Heat |
 89%
Level 1: 80%+
AIPMT - 2013
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Links
The molar specific heat at a constant pressure of an ideal gas is \(\dfrac{7}{2}R.\) The ratio of specific heat at constant pressure to that at constant volume is:
| 1. | \(\dfrac{7}{5}\) | 2. | \(\dfrac{8}{7}\) |
| 3. | \(\dfrac{5}{7}\) | 4. | \(\dfrac{9}{7}\) |
Subtopic: Â Molar Specific Heat |
 77%
Level 2: 60%+
AIPMT - 2006
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When volume changes from \(V\) to \(2V\) at constant pressure(\(P\)), the change in internal energy will be:
1. \(PV\)
2. \(3PV\)
3. \(\frac{PV}{\gamma -1}\)
4. \(\frac{RV}{\gamma -1}\)
Subtopic: Â Molar Specific Heat |
 70%
Level 2: 60%+
AIPMT - 1998
Hints
If a gas changes volume from \(2\) litres to \(10\) litres at a constant temperature of \(300~\text{K}\), then the change in its internal energy will be:
| 1. | \(12~\text{J}\) | 2. | \(24~\text{J}\) |
| 3. | \(36~\text{J}\) | 4. | \(0~\text{J}\) |
Subtopic: Â Molar Specific Heat |
 88%
Level 1: 80%+
AIPMT - 1998
Hints
- 1(current)
Q. No.
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