At a given volume and temperature the pressure of a gas

A gas at certain volume and temperature has a pressure equal to 75 cm of Hg. column. If the mass of the gas is doubled, at the same volume and temperature, its new pressure is-

A gas at certain volume and temperature has a pressure equal to 0.75 m of Hg. If the mass of the gas is doubled at the same volume and temperature, its new pressure will be-

At a given temperature, pressure of helium gas is 2Pa and its volume is 400 ml. Find volume occupied by it at 1Pa.

The pressure of a gas of volume 22.4 l is 3 atm at certain temperature. Then find the pressure of the gas of volume 44.8 l at the same temperature.

At a given temperature annd pressure, the volume of 10 g of He gas is 61.6 L. how much of He gas has to be taken out at the same temperature and pressure to reduce its volume to 25 L?

At a given temperature and pressure, the volume of 1 mol of an ideal gas is 10 L. at the same temperature and pressure, the volume of 1 mol of a real gas is VL. At this temperature and pressure, if the compressibility factor of the real gas is greater than 1, then -