| 1 |
The diffusion of gases at absolute zero will be |
- A. Unchanged
- B. Zero
- C. slightly decreases
- D. Slightly increases
|
| 2 |
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
|
| 3 |
Which one of the following expressions is for ideal gas equation. |
- A. PM= nRT
- B. PV = nRT
- C. PV = dRT
- D. PV= nTP
|
| 4 |
Normal temperature and pressure (S.T.P) of gas rafers to |
- A. 273 K and 76 mm Hg
- B. 273° C and 760 mm Hg
- C. 273 K and 760 mm Hg
- D. 273° C and 76 mm Hg
|
| 5 |
Pressure remaining constant at which temperature the volume of a gas will come twice of what it is at 0 <sup>o</sup>C |
- A. 546 <sup>o</sup>C
- B. 200 <sup>o</sup>C
- C. 546 K
- D. 273 K
|
| 6 |
What are the SI units of Van der Waal constant 'a' |
- A. atm dm3 mol-2
- B. atm dm6 mol-2
- C. Nm4 mol-2
- D. Nm mol-1
|
| 7 |
The deviation of a gas from ideal behavior is maximum at. |
- A. -10 <sup>o</sup>C and 5.0 atm
- B. -10<sup>o</sup>C and 2 atm
- C. 0<sup>o</sup>C and 2 atm
- D. 100<sup>o</sup>C and 2 atm
|
| 8 |
In gas occupies a volume of 2 dm<sup>3</sup>at 27°C and I atm pressure. The expression for its volume at S.T.P. is |
|
| 9 |
Which of the following will have the same number of molecules at STP |
- A. 280 cm<sup>3</sup>of CO<sub>2</sub>and 280 cm<sup>3</sup>of N<sub>2</sub>O
- B. 11.2 dm<sup>3</sup>of O<sub>2</sub>and 32 g of O<sub>2</sub>
- C. 44 g of CO<sub>2</sub>and 11.2 dm<sup>3</sup>of CO
- D. 28 g of N<sub>2</sub>and 5.6 dm<sup>3</sup>of oxygen
|
| 10 |
How should the condition be changed to prevent the volume of a given gas from expanding when its mass is increased |
- A. Temperature is lowered and pressure is increased
- B. Temperature is increase and pressure is lowered
- C. Temperature and pressure both are lowered
- D. Temperature and pressure both are increased
|