Which of the following parameters is the same for molecules of all gases at a given temperature?
1. mass
2. speed
3. momentum
4. kinetic energy
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 \(P= \dfrac{2E}{3V}\). 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 \(200~\text{kPa}.\) If half the gas is removed from it, the pressure will be:
1. \(100~\text{kPa}\)
2. \(200~\text{kPa}\)
3. \(400~\text{kPa}\)
4. \(800~\text{kPa}\)