Vapour Pressure

Q. If pressure of $C{O}_2$ (real gas) in a container is given by P = $\frac{RT}{2V-b}-\frac{a}{4V^2}$ then mass of the gas in container is

1. 11 gm
2. 22 gm
3. 33 gm
4. 44 gm

Q. A vessel A has volume V and a vessel B has volume 2V. Both contain some water which has a constant volume. The pressure in the space above water is $p_a$ for vessel A and $p_b$ for vessel B.

1. $p_a=p_b$
2. $p_a=2p_b$
3. $p_b=2p_a$
4. $p_b=4p_a$

Q.

The vapour pressure of a liquid at any temperature is defined as the pressure exerted by the vapour in equilibrium with the liquid at that temperature. T/F

1. True
2. False

Q. A vessel A has volume V and a vessel B has volume 2V. Both contain some water which has a constant volume. The pressure in the space above water is $p_a$ for vessel A and $p_b$ for vessel B.

1. $p_a=p_b$
2. $p_a=2p_b$
3. $p_b=2p_a$
4. $p_b=4p_a$