The ideal gas law has the assumption that the gas
has; large volume (in that the distance of the particle is large), low pressure
and low temperature. The equation is PV = RT where P is the pressure, V is the
volume, R is the gas constant and T is the temperature. If the volume of the
gas is doubled and the temperature is doubled, you will still have the same
pressure. It is because the pressure is inversely proportional to temperature.
PV = RT
P = RT/V
At 2V and 2T,
P = 2RT/2V
P = RT/V
