HSC Together Year 11 Chemistry: Introduction to Gas Laws

Chemistry

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Introduction to Gas Laws

How do Gases Change with Different Conditions?

This post will go through the basic gas laws that describe the relationship between the volume of a gas and temperature, pressure and the number of moles for Prelim Chemistry.

Topic: Gas Laws

  • Conduct investigations and solve problems to determine the relationship between the Ideal Gas Law and:
    • Gay-Lussac’s Law (temperature)
    • Boyle’s Law
    • Charles’ Law
    • Avogadro’s Law

 

The Gas Laws

There are four main gas laws and the combined gas law. The laws and the relationships they describe (assuming the other factors are constant) are:

Gay Lussac’s Law -> pressure and temperature (volume and moles constant)

P1/T1 = P2/T2

Boyle’s Law -> pressure and volume (temperature and moles constant)

P1V1 = P2V2

Charle’s Law -> volume and temperature (pressure and moles constant)

V1/T1 = V2/T2

Avogadro’s Law -> volume and moles (pressure and temperature constant)

V1/n1 = V2/n2

Combined Gas Law

(P1V1)/T1 = (P2V2)/T2

Note that these are simplified descriptions of the gas laws and it is advised you go through them in a little more depth.

This video below will better describe gas laws which will help you with understanding how to use them.

 

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