4.3.3.1 - Particle motion in gases
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What is the motion of molecules of gas.
The molecules of gas are in constant random motion - constantly moving with random speeds in random directions
What is the temperature of a gas related to….
The temperature of a gas is related to the average kinetic energy of the molecules
So if you increase the temperature of a gas, you transfer energy into the kinetic energy stores of its particles
Changing the temperature of a gas that is held at a constant volume, changes the….
Changing the temperature of a gas that is held at a constant volume, changes the pressure exerted by the gas.
Describe how pressure exerted increases as temperature increases of a gas at a constant volume.
Increase in temperature = transfer to kinetic energy = faster particles = more frequent successful collisions = increase in net force exerted = increase in gas pressure
What is the relationship between changes in temperature and changes in pressure?
Changes in temperature are directly proportional to changes in pressure