100 g of an ideal gas is kept in a cylinder of 416 L volume at 27$$^\circ$$C under 1.5 bar pressure. The molar mass of the gas is __________ g mol^{$$-$$1}. (Nearest integer)

(Given : R = 0.083 L bar K^{$$-$$1} mol^{$$-$$1})

2.0 g of H_{2} gas is adsorbed on 2.5 g of platinum powder at 300 K and 1 bar pressure. The volume of the gas adsorbed per gram of the adsorbent is __________ mL.

(Given : R = 0.083 L bar K^{$$-$$1} mol^{$$-$$1})

A rigid nitrogen tank stored inside a laboratory has a pressure of 30 atm at 06:00 am when the temperature is 27$$^\circ$$C. At 03:00 pm, when the temperature is 45$$^\circ$$, the pressure in the tank will be _________ atm. [nearest integer]

At 300 K, a sample of 3.0 g of gas A occupies the same volume as 0.2 g of hydrogen at 200 K at the same pressure. The molar mass of gas A is ____________ g mol^{$$-$$1}. (nearest integer) Assume that the behaviour of gases as ideal.

(Given : The molar mass of hydrogen (H_{2}) gas is 2.0 g mol^{$$-$$1}.)