Lesson 11

Gay-Lussac's Law

- pressure of a given amount of gas is directly proportional to the temperature if the gas volume and amount of gas do not change and if the temp. is expressed in degrees Kelvin.

Changing pressure can depend on the type of container the gas is in:

Flexible Container- changing temperature or pressure changes volume of gas.

-This comes from the container allowing the gas to expand the container walls out

Rigid Container- increasing temperature causes pressure to increase

- since the container won't allow the gas volume to expand, it can't relieve some of the pressure so the pressure rises along with the temperature.

Formula

• k=P/T - constant k equals the original pressure divided by the original temperature
• V is missing from the equation because the volume is not changing

 

 

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