Q. A vessel contains 1 mole of gas (molar mass 32) at a temperature T. The pressure of the gas is p. An identical vessel containing one mole of the gas (molar mass 4) at a temperature 2 T has a pressure of

 2709  154 IIT JEEIIT JEE 1997Thermodynamics Report Error

Solution:

pV = nRT
or
if V and n are same. Therefore, if T is doubled, pressure also
becomes two times i.e. 2p.