| 1 |
Which is an example of irreversible process. |
- A. Explosion
- B. Evaporation
- C. Slow compression
- D. A chemical explosion
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| 2 |
First law of thermodynamics can be defined by the equation |
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| 3 |
When temperature of source and sink of a heat engine becomes equal then the entropy change will be. |
- A. zero
- B. Minimum
- C. Maximum
- D. Negative
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| 4 |
A finite volume of gas consists of |
- A. Small no. of molecules
- B. Large no. of molecule
- C. Average no. of molecule
- D. None of these
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| 5 |
A diatomic gas molecules has |
- A. Translational energy only
- B. Rotational energy only
- C. Vibrational energy only
- D. All translational, Rotational and vibrational energy
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| 6 |
When hot and cold water are mixed, the entropy. |
- A. Decreases
- B. Increases
- C. Remain constant
- D. Zero
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| 7 |
Heat is form of. |
- A. Power
- B. Momentum
- C. Energy
- D. Torque
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| 8 |
The difference between two molar capacities is equal to. |
- A. Plank's constant
- B. General gas constant
- C. Molar gas constant
- D. Boltzmann constant
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| 9 |
The Carnot cycle can be shown by which graph |
- A. P - T graph
- B. P - V Graph
- C. V- T graph
- D. PV -T graph
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| 10 |
Environmental crisis are also known as |
- A. Population crisis
- B. Entropy crisis
- C. War crisis
- D. Mass crisis
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