2.3 the ideal gas equation

• the product of pressure and volume is a constant as long as the temperature remains constant
• pressure x volume / temperature = constant for a fixed mass of gas
• pressure x volume = number of moles x gas constant x temperature
• PV = nRT
• in the ideal gas equation:

  1. pressure must be in Pa
  2. volume must be in m3
  3. temperature must be in K