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.
1. | mass of the gas |
2. | kinetic energy of the gas |
3. | number of moles of the gas |
4. | number of molecules in the gas |
The process on an ideal gas as shown in the figure given below is:
1. isothermal
2. isobaric
3. isochoric
4. none of these
Consider a collision between an oxygen molecule and a hydrogen molecule in a mixture of oxygen and hydrogen kept at room temperature. Which of the following are possible?
(a) | The kinetic energies of both the molecules increase. |
(b) | The kinetic energies of both the molecules decrease. |
(c) | The kinetic energy of the oxygen molecule increases and that of the hydrogen molecule decreases. |
(d) | The kinetic energy of the hydrogen molecule increases and that of the oxygen molecule decreases. |