The gas in vessel is subjected to a pressure of 20 atmosphere at a temperature ${27^ \circ }C.$ The pressure of the gas in a vessel after one half of the gas is released from the vessel and the temperature of the remainder is raised by ${50^ \circ }C$ is

A gas is collected over the water at ${25^ \circ }C.$ The total pressure of moist gas was $735\;mm$ of mercury. If the aqueous vapour pressure at ${25^ \circ }C$ is $23.8\;mm.$ Then the pressure of dry gas is

Amount of heat required to convert 10 g of ice to water at ${20^0}C$ is

The volume of a gas at pressure $21 imes {10^4}N/{m^2}$ and temperature ${27^ \circ }C$ is $83\;litres.$ If $R = 8.3\;J/mol\;K,$ then the quantity of gas in $g - mole$ will be

The equation of state for 5g of oxygen at a pressure $p$ and temperature $T$, when occupying a volume $V$, will be

A gas is collected over the water at ${25^ \circ }C.$ The total pressure of moist gas was $735\;mm$ of mercury. If the aqueous vapour pressure at ${25^ \circ }C$ is $23.8\;mm.$ Then the pressure of dry gas is

A gas at ${27^0}C$ and pressure of 30 atm is allowed to expand to atmosphere pressure and volume 15 times larger. The final temperature of the gas is?

Two spheres made of same substance have diameters in the ratio $1\;:2$. Their thermal capacities are in the ratio of

If a liquid is heated in weightlessness, the heat is transmitted through

In a pressure cooker, cooking is faster because the increase of vapour pressure

The volume of a gas at ${20^0}C\,is\,100c{m^3}$ at normal pressure. If it is heated to ${100^0}C$ its volume becomes $125c{m^{^3}}$ at the same pressure, then volume coefficient of the gas at normal pressure is