Transcript Combined Gas Law

Combined Gas Law
Chapter 10 – Physical Characteristics
of Gases
Combined Gas Law
• Combines Boyle’s, Charles’, and Gay-Lussac’s
Laws.
• P1V1 = P2V2
T1
T2
• The temperatures must be in Kelvin.
• The pressures have to be in the same units.
• The volumes have to be in the same units.
A practice problem
• The volume of a gas is 27.5 mL at 22.00C and
0.974 atm. What will the volume be at 15.00C
and 0.993 atm?
• P1V1 = P2V2
T1
T2
Your turn!
• A 700. mL sample of a gas at STP is
compressed to a volume of 200. mL, and the
temperature is increased to 30.00C. What is
the new pressure of the gas in kPa?
Homework
• Worksheet