Explaining changes of pressure
Lesson 5 / 9
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I can explain the effect of a temperature change or a change in volume on the pressure of a fluid.
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The pressure of a gas in a container increases if the temperature or amount of gas increases, or volume decreases.
Increasing temperature increases the speed of particles in a gas.
Pressure × volume = constant (pV = constant).
When a gas expands, its particles do work on the surrounding air.
Doing work on a gas can increase its temperature.
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