| 1 |
A real gas obeying Van der Waal's equation will resemble ideal gas if. |
- A. Both a and b are large
- B. Both a and b are small or zero
- C. A is small and b is large
- D. A is large and b is small
|
| 2 |
For a gas obeying Boyle's law if pressure is doubled, the volume becomes. |
- A. Double
- B. One half
- C. Four times
- D. Remains constant
|
| 3 |
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
|
| 4 |
At constant temperature in a given mass of and ideal gas. |
- A. The ratio of pressure and volume remains constant
- B. Volume always remains constant
- C. Pressure always remains constant
- D. The product of pressure and volume remains constant
|
| 5 |
Total pressure of mixture of two gases is. |
- A. The sum of their partial pressures.
- B. The difference of their partial pressures
- C. The product of their practical pressures
- D. The ratio of their partial pressures
|
| 6 |
More ideal gas at room temperature is. |
- A. CO2
- B. NH3
- C. SO2
- D. N2
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| 7 |
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
|
| 8 |
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
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| 9 |
The Van der Waals' equation explain the behaviour of. |
- A. Ideal gas
- B. Real gas
- C. Vapours
- D. Non ideal gases
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| 10 |
According to Boyle's law which parameters give a straight line parallel to x -axis when we plot a graph between |
- A. P and V
- B. P and 1/V
- C. P and PV
- D. V and T
|