| 1 |
In case the work done in zero. |
- A. Constant pressure
- B. Constant volume
- C. Constant temperature
- D. Constant mass
|
| 2 |
The mean kinetic energy of gas is at. |
- A. 0 <sup>o</sup>C
- B. -273 <sup>o</sup>C
- C. 100 K
- D. 100 <sup>o</sup>C
|
| 3 |
S.I Unit of pressure of gas is. |
- A. Nm
- B. N.m
- C. N2/m
- D. N3m
|
| 4 |
Transformation of heat other forms of energy is discussed in |
- A. Thermal physics
- B. Thermodynamics
- C. Atomic physics
- D. Nuclear physics
|
| 5 |
Average translational K.E. of molecules for an ideal gas is given as |
- A. 1/2 KT
- B. KT
- C. 2/3 KT
- D. 3/2 KT
|
| 6 |
Size of the molecules is much smaller as compared to the |
- A. Mass of the molecules
- B. Distance between the molecules
- C. Density of the molecules
- D. Volume of the molecules
|
| 7 |
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
|
| 8 |
The internal energy of system does not depend on |
- A. Temperature
- B. Pressure
- C. Path
- D. Final and initial state
|
| 9 |
At constant temperature and pressure, if volume of given mass of a gas is doubled then density is. |
- A. Doubled
- B. 1/4 original
- C. 1/2 of original
- D. Unchanged
|
| 10 |
The efficiency of any heat engine can never be |
- A. +ve
- B. 100%
- C. -ve
- D. None of these
|