How can I graph Charles' law?

1 Answer
Jul 2, 2014

Charles's law (also known as the law of volumes) is an experimental gas law which describes how gases tend to expand when heated. A modern statement of Charles's law is:

When the pressure on a sample of a dry gas is held constant, the Kelvin temperature and the volume will be directly related.
this directly proportional relationship can be written as:

V #alpha# T or V/T = k

V is the volume of the gas
T is the temperature of the gas (measured in Kelvin).
k is a constant.

This law describes how a gas expands as the temperature increases; conversely, a decrease in temperature will lead to a decrease in volume. For comparing the same substance under two different sets of conditions, the law can be written as:

#V_1# / #T_1# = #V_2# / #T_2# or

#V_1# / #V_2# = #T_1# / #T_2#

Vary the temperature of the gas and records its new volume, at the new temperature. Get series of values of V and T. Plot V and T values to get Charles' law graph.
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