• If the volume?V?of an ideal gas is constant, the?pressure law?is given by:

?

P?∝?T

• This means the pressure is?proportional?to the temperature

• The relationship between the pressure and (Kelvin) temperature for a fixed mass of gas at constant volume can also be written as:

• Where:
  • P₁?= initial pressure (Pa)
  • P₂?= final pressure (Pa)
  • T₁?= initial temperature (K)
  • T₂?= final temperature (K)

   

Pressure law graph representing temperature (in °C) directly proportional to the volume