A sample of gas occupies 100 mL at $27^{\circ }C27^\backslash circ\; C$ and 740 mm pressure. When its volume is changed to 80 mL at 740 mm pressure, the temperature of the gas will be

Pressure of a mixture of 4g of $O_{2}O\_2$ and 2g of $H_{2}H\_2$ confined in a bulb of 1 litre at $O^{\circ }CO^\backslash circ\; C$ is

If two moles of an ideal gas at 546 K occupy a volume of 44.8 litres, the pressure must be

The volume of a gas is 100 mL at $100^{\circ }C100^\backslash circ\; C$. If pressure remains constant then at what temperature it will be 200 mL?

120g of an ideal gas of molar mass 40g $mol{e}^{-1}mole^\{-1\}$ are confined to a volume of 20L at 400K Using R = 0.0821 L atm $K^{-1}K^\{-1\}$$mol{e}^{-1}mole^\{-1\}$, the pressure of the gas is

Pure hydrogen sulphide is stored in a tank of 100 litre capacity at $20^{\circ }C20^\backslash circ\; C$ and 2 atm pressure. The mass of the gas will be

Molecular weight of a gas that diffuses twice as rapidly as the gas with molecular weight 64 is

If rate of diffusion of A is 5 times that of B, what will be the density ratio of A and B?

At what temperature, the rate of effusion of $N_{2}N\_2$ would be 1.625 times that of $S{O}_{2}SO\_2$ at $50^{\circ }C50^\backslash circ\; C$?

160 mL of a gas are collected over water at $25^{\circ }C25^\backslash circ\; C$ and 745 mm Hg. If aqueous tension at $25^{\circ }C25^\backslash circ\; C$ is o 23.8 mm Hg, then pressure of dry gas at $25^{\circ }C25^\backslash circ\; C$ is :