Kinetic Theory of Gases

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Presentation transcript:

Kinetic Theory of Gases

How moving particles exert pressure Particles collide with a surface Particles experience a Force By N3 particles exert a force on the surface area Pressure = Ave Force exerted per unit area m u m v F.

How Pressure varies with Volume ↓ Volume, particles have less space to move in Particles hit surface more often ↑ Ave Force on surface Area ↑ Pressure

How Pressure varies with Temp ↑ Temp → ↑ Speed of Particles ( ↑EK ) Particles hit surface more often Particles hit surface with a greater force ↑ Ave Force on surface Area ↑ Pressure

How Volume varies with Temperature ↑ Temp → ↑ Speed of Particles ( ↑EK ) Particles hit surface more often Particles hit surface with a greater force Volume expands due to higher inside pressure Until pressures inside and outside are equal

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