- 1(current)
Q. No.Which of the following gases has maximum rms speed at a given temperature?
1. hydrogen
2. nitrogen
3. oxygen
4. carbon dioxide
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 rms speed of oxygen at room temperature is about \(500\) m/s. The rms speed of hydrogen at the same temperature is about:
1. \(125\) m s–1
2. \(2000\) m s–1
3. \(8000\) m s–1
4. \(31\) m s–1
1. \(v\)
2. \(v\sqrt{2}\)
3. \(2v\)
4. \(4v\)
| 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 |
Consider a mixture of oxygen and hydrogen kept at room temperature. As compared to a hydrogen molecule an oxygen molecule hits the wall:
| (a) | with greater average speed |
| (b) | with smaller average speed |
| (c) | with greater average kinetic energy |
| (d) | with smaller average kinetic energy |
Choose the correct option:
1. (a), (b)
2. (b) only
3. (c), (d)
4. (a), (d)
Which of the following quantities is zero on an average for the molecules of an ideal gas in equilibrium ?
(a) kinetic energy
(b) momentum
(c) density
(d) speed
Chooose the correct option
1. (a), (b)
2. (b) only
3. (c) , (d)
4. (a) (d)
Keeping the number of moles, volume and temperature the same, which of the following are the same for all ideal gases ?
(a) rms speed of a molecule
(b) density
(c) pressure
(d) average magnitude of momentum.
Chooose the correct option
1. (a), (b)
2. (b) , (c)
3. (c) only
4. (a) (d)
- 1(current)
Q. No.
© 2024 GoodEd Technologies Pvt. Ltd.