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Gas laws

Boyle's law says that if the temperature is constant, so the product of pressure and volume are constant. The relation reads:
This means that if the volume is halved during compression, then the pressure is doubled. Charle's law says that the volume of gas changes in direct proportion to the cange in temperature. The relation reads
The general law of state for gases is a combination of Boyle's and Charle's laws. This states how pressure, volume and temperature affect each other. When one of these variables is changed, this affects at least one of the other two variables. This can be written:
The constant R is called the individual gas constant and only concerns the properties of the gas. If the mass m of the gas takes up the volume V, the relation can be written: