The universal gas constant $R$ is defined as:

Pressure remaining the same,the volume of a given mass of an ideal gas increases for every degree centigrade rise in temperature by a definite fraction of its volume at:

At constant pressure,the volume of a fixed mass of an ideal gas is directly proportional to

$2.9 \, g$ of a gas at $95^{\circ} C$ occupied the same volume as $0.184 \, g$ of dihydrogen at $17^{\circ} C$,at the same pressure. What is the molar mass of the gas?

The volume of a given amount of gas at $27^{\circ} C$ at constant pressure is $420 \ cm^3$. If the temperature is reduced by $20^{\circ} C$ at constant pressure, what will be the volume of the gas (in $cm^3$)?

When an ideal gas undergoes free expansion,then: