Gases Gay Lussac’s Law.

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Presentation transcript:

Gases Gay Lussac’s Law

Gay-Lussac’s Law As the temperature of a gas increases, the pressure increases. Volume remains constant

Symbolic Representation of Gay-Lussac’s Law As temperature increases, pressure increases Temperature (K) Pressure (atm) Pressure and temperature are directly proportional How is this represented in the form of an equation?

Gay-Lussac’s Law Example #1 A sealed cylinder contains nitrogen gas at 9.8 atm and a temperature of 293 K. When the cylinder is left in the sun, the temperature of the gas increases to 323 K. What is the pressure of the gas in the cylinder? Step #1: Qualitative Assessment of the Problem Step #2: Quantitative Assessment of the Problem

Gay-Lussac’s Law Example #2 The pressure in a car tire is 1.95 atm at 27oC. After a long drive, the pressure is 2.22 atm. What is the temperature of the air in the tire? Assume that the volume is constant. Step #1: Qualitative Assessment of the Problem Step #2: Quantitative Assessment of the Problem