A gas behaves more closely as an ideal gas at:
1. | low pressure and low temperature |
2. | low pressure and high temperature |
3. | high pressure and low temperature |
4. | high pressure and high temperature |
The pressure of an ideal gas is written as \(P= \frac{2E}{3V}\). Here \(E\) refers to:
1. | translational kinetic energy |
2. | rotational kinetic energy |
3. | vibrational kinetic energy |
4. | total kinetic energy |
The energy of a given sample of an ideal gas depends only on its:
1. volume
2. pressure
3. density
4. temperature.
Which of the following gases has maximum rms speed at a given temperature?
1. | hydrogen | 2. | nitrogen |
3. | oxygen | 4. | carbon dioxide |
The following figure shows graphs of pressure versus density for an ideal gas at two temperatures \(T_1\) and \(T_2.\)
Then:
1. | \(T_1>T_2\) |
2. | \(T_1 = T_2\) |
3. | \(T_1<T_2\) |
4. | any of the three is possible |
The mean square speed of the molecules of a gas at absolute temperature \(T\) is proportional to:
1. \(1 \over T\)
2. \( \sqrt{T} \)
3. \(T\)
4. \(T^2\)
1. | \(v_a>v_{rms}\) |
2. | \(v_a<v_{rms}\) |
3. | \(v_a=v_{rms}\) |
4. | \(v_{rms}\) is undefined |
The pressure of a gas kept in an isothermal container is 200 kPa. If half the gas is removed from it, the pressure will be
1. 100 kPa
2. 200 kPa
3. 400 kPa
4. 800 kPa.