An ideal gas cannot be liquified because
1. its critical temperature is always above 0C
2. its molecules are relatively smaller in size
3. it solidifies before becoming a liquid
4. forces operating between its molecules are negligible
The correct value of the gas constant 'R' is close to
1. 0.082 L atm K
2. 0.082 L atm K-1 mol-1
3. 0.082 L atm-1 K mol-1
4. 0.082 L-1 atm-1 K mol
While He is allowed to expand through a small jet under adiabatic condition heating effect is observed. This is due to the fact that:
1. helium is an inert gas
2. helium is a noble gas
3. helium is an ideal gas
4. the inversion temperature of helium is very low
If an open container is heated from 300 K to 400 K, then the % of gas that remains in the container is-
1. 25%
2. 50%
3. 75%
4. 100%
1.6 g O2 gas and 0.1 g H2 gas are placed in a 1.12 L flask at 0 oC. The total pressure of the gas mixture will be-
1. 2 atm
2. 3 atm
3. 4 atm
4. 1 atm