GAY-LUSSAC’S LAW PRACTICE PROBLEMS NAME___________________ 1. State Gay-Lussac’s Law: 2. What variables must be held constant for Gay-Lussac’s Law to be true? 3. This gas law works only if temperature is recorded in ____________________ units. 4. What equation is used to convert from Celsius to these desired units? 5. Convert the following celcius temperature readings into the desired units: 20.0˚C = 65.0˚C = -80.0˚C = 6. A gas at 20.0˚C is increased to 40.0˚C, will its pressure: A) go up? B) double? C) if the original pressure was 5.00 atm, what would the new pressure be? D) what would the new pressure be if the original pressure was 725 Torr? 7. A sample of O2 under 2.00 atm occupies 500 ml at 25.0˚C. A) What pressure will the sample have at 0.0˚C ? B) What temperature will be needed to produce a pressure of 4.00 atm? 8. If a gas has a pressure of 450 mm Hg and a volume of .250 lat a temperature of 22.0˚C, what would the new temperature be at 760 mm Hg? (give answer in ˚C)

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# worksheet GAY