A flask is filled with 10 g of a gas at 20 °C and then heated to 50 °C. As some quantity of gas escaped, the pressure in the flask remained the same throughout the experiment. The mass of the gas that has escaped has a mass equal to

A flask is filled with 13 g of an ideal gas at 27^(@)C and its temperature is raised to 52^(@)C . The mass of the gas that has to be released to maintain the temperature of the gas in the flask at 52^(@)C , the pressure remaining the same is

A 1 L flask contains 32 g O_(2) gas at 27^(@)C . What mass of O_(2) must be released to reduce the pressure in the flask to 12.315 atm?

450mL of oxygen gas at 20^(@)C" is heated to "50^(@)C. What is the new volume of the gas at constant pressure?

28 g "of" N_2 gas is contained in a flask at a pressure of 10 atm and at a temperature of 57^@ C . It is found that due to leakage in the flask, the pressure is reduced to half and the temperature to 27^@ C . The quantity of N_(2) gas that leaked out is.

A flask filled with C Cl_(4) was weighted at a temperature and pressure. The flask was then filled with oxygen at the same temperature and pressure. The mass of C Cl_(4) vapour would be about

A container of volume 30 litre is filled with an ideal gas at one atmos pressure and 0^(@)C temperature. Keeping the temperature constant some mass of gas is allowed to escape from the container. Due to this the pressure of the gas decreases to 0.78 atmos from the previous one. If the density of the gas at N.T.P. is1.3 gm/litre, the mass of the gas remaining is -