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Combined Gas Law

Combined Gas Law. Chapter 10 – Physical Characteristics of Gases. Combined Gas Law. Combines Boyle’s, Charles’, and Gay-Lussac’s Laws. P 1 V 1 = P 2 V 2 T 1 T 2 The temperatures must be in Kelvin. The pressures have to be in the same units.

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Combined Gas Law

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  1. Combined Gas Law Chapter 10 – Physical Characteristics of Gases

  2. 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.

  3. 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

  4. 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?

  5. Homework • Page 328 31-37

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