| 1 |
A gas is heated in such a way that its volume and absolute temperature both are doubled. the pressure of the gas |
- A. Becomes 2 times
- B. Becomes 4 times
- C. Become half
- D. Remain same
|
| 2 |
More ideal gas at room temperature is. |
- A. CO2
- B. NH3
- C. SO2
- D. N2
|
| 3 |
Equal masses of methane and oxygen are mixed in an empty container at 25°C, the fraction of total pressure exerted by oxygen is |
- A. 1/3
- B. 8/9
- C. 1/9
- D. 16/17
|
| 4 |
The molar volume of CO2 is maximum at. |
- A. STP
- B. 127 <sup>o</sup>C and 1 atm
- C. 0 <sup>o</sup>C and 2 atm
- D. 273 <sup>o</sup>C and 2 atm
|
| 5 |
If temperature of one mole of ideal gas at 273 K and one atmospheric pressure is increased by 1 K, amount of energy absorbed is. |
- A. 0.082 dm3 atm
- B. 1.987 cal.
- C. 8.313 J
- D. All are correct.
|
| 6 |
Critical temperature of CO2 gas is. |
- A. 31.1 <sup>o</sup>C
- B. 13.1 K
- C. 13.1 <sup>o</sup>C
- D. 1.31 <sup>o</sup>C
|
| 7 |
Noon has low critical temperature and pressure as compared to other gases. the most probable reason is that |
- A. Its octet is complete
- B. It is a monoatomic gas
- C. It has very low polarizability
- D. It has least forces of attraction
|
| 8 |
The molar volume of CO<sub>2</sub>is maximum at |
- A. STP (0°C and 1 atm)
- B. 127° C and 1 atm
- C. 0°C and 2 atm
- D. 273°C and 2 atm
|
| 9 |
The molecules of a gas show more deviation from ideal behaviour at low temperature, because |
- A. Attractive force dominate at low temperature
- B. Kinetic energies are increased
- C. Collisions become less frequent
- D. Densities of the gases increase
|
| 10 |
The Van der Waals' equation explain the behaviour of. |
- A. Ideal gas
- B. Real gas
- C. Vapours
- D. Non ideal gases
|