The mean translational kinetic energy of a perfect gas molecule at the temperature T Kelvin is:
1.
2. kT
3.
4. 2 kT
The curve between absolute temperature and \({v}^2_{rms}\) is:
1. | 2. | ||
3. | 4. |
At constant temperature, on increasing the pressure of a gas by 5% , its volume will decrease by:
1. 5%
2. 5.26 %
3. 4.26 %
4. 4.76 %
One liter of gas A and two liters of gas B, both having the same temperature 100C and the same pressure 2.5 bar will have the ratio of average kinetic energies of their molecules as:
1. 1:1
2. 1:2
3. 1:4
4. 4:1
Four molecules have speeds 2 km/sec, 3 km/sec, 4 km/sec and 5 km/sec. The root mean square speed of these molecules (km/sec) is:
1.
2.
3. 3.5
4. 3
For gas, if the ratio of specific heats at constant pressure p and constant volume V is , then value of degree of freedom is:
1.
2.
3.
4.
Gases exert pressure on the walls of containing vessel because the gas molecules:
1. Possess momentum
2. collide with each other
3. have finite volume
4. obey gas laws
What is the mass of 2 liters of nitrogen at 22.4 atmospheric pressure and 273 K?
1. 28 g
2. 14 g
3. 56 g
4. None of these
For a gas, the r.m.s speed at 800 K is:
1. Four times the value at 200 K
2. Half the value at 200 K
3. Twice the value at 200 K
4. Same as at 200 K
Gas is found to obey the law = constant. The initial temperature and volume are and . If the gas expands to a volume , its final temperature becomes:
1.
2.
3.
4. None of these