3.3 : Ideal gases and absolute zero

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Presentation transcript:

3.3 : Ideal gases and absolute zero 3.2.9 Define pressure. 3.2.10 State the assumptions of the kinetic model of an ideal gas.

Ideal gasses Have the equation of state PV = nRT (this equation also defines the universal gas constant) cannot be liquefied. obey Newton’s laws of motion. have no inter-molecular forces. are made up of particles with negligible volume (i.e. points) have particles in random motion Have particle collisions which are elastic Particle collisions take zero time

Pressure Pressure = Force/ Area P = F/A The units are: Pressure = pascals (Pa) Force = newtons (N) Area = meters squared (m2)

An ideal gas

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