The Gaseous state

• bonkysleuth

  10 May 10, 20:35

  Can someone explain to me if the following statement is true?

  The density of an ideal gas at constant pressure is inversely propotional to the temperature. I know volume is, but how about density?

   

  Thanks

• UltimaOnline

  10 May 10, 21:27

  Originally posted by bonkysleuth:

  Can someone explain to me if the following statement is true?

  The density of an ideal gas at constant pressure is inversely propotional to the temperature. I know volume is, but how about density?

   

  Thanks

  
  At constant pressure => not constant volume.

   

  Increasing the temperature increases kinetic energy of the gas atoms/moleculesm, which results in greater volume for the same mass.

   

  Hence density (mass per unit volume) decreases as temperature increases.