GAY LUSSAC'S LAW

• Gay Lussac's Law


  Relates pressure and temperature
• Pressure and temperature


  Directly proportional if volume and amount of substance are constant
• Gay Lussac's Law is similar to Charles' Law
• General form of Gay Lussac's Law

  p1/t1 = p2/t2, where p is pressure and t is temperature
• Subscripts 1 and 2


  Refer to initial and final states respectively
• Pressure must be expressed in pressure units, temperature must be in Kelvin
• To convert Celsius to Kelvin, add 273
• Solving Gay Lussac's Law problems

  1. Identify given information (p1, t1, p2 or t2)

  2. Rearrange equation to solve for unknown (t2 or p2)

  3. Substitute values and calculate

  4. If temperature in Celsius, convert final answer to Celsius