| 1 |
The collision between the gas molecules is |
- A. Elastic
- B. Inelastic
- C. Both a and b
- D. None of these
|
| 2 |
An ideal heat engine can only be 100% efficient if its cold temperature reservoir is at. |
- A. 0 K
- B. 0 <sup>o</sup>C
- C. 100 K
- D. 100 <sup>o</sup>C
|
| 3 |
In reversible process the entropy of system. |
- A. Remain constant
- B. Decrease
- C. Increase
- D. Becomes zero
|
| 4 |
Not change in entropy of a system after one complete Carnot cycle is. |
- A. Positive
- B. Negative
- C. Zero
- D. None of these
|
| 5 |
During adiabatic process, which factor remains constant. |
- A. Entropy
- B. Pressure
- C. Momentum
- D. Power
|
| 6 |
For a gas obeying Boyle's Law, if the pressure is doubled, the volume becomes. |
- A. Double
- B. Three fold
- C. One half
- D. Remains the same
|
| 7 |
Transformation of heat other forms of energy is discussed in |
- A. Thermal physics
- B. Thermodynamics
- C. Atomic physics
- D. Nuclear physics
|
| 8 |
The SI unit of product of pressure and volume is. |
- A. <sub>Watt</sub>
- B. Joule
- C. Pascal
- D. Newton
|
| 9 |
The behaviour of gases is discussed by |
- A. Knowing their nature
- B. Knowing their temperature
- C. Kinetic theory
- D. Maxwell's theory
|
| 10 |
A cycle of petrol engine undergoes |
- A. Two process
- B. Three process
- C. Four process
- D. single process
|
