Plots of V versus T for representative gases.Graphic relationship—Charles’s Law. The dashed lines represent extrapolation
of the data into regions where the gas would become liquid or solid.
Extrapolation shows that each gas, if it remained gaseous, would reach zero
volume at 0 K or –273°C.TIP
Assume dry gases unless otherwise stated.Type Problem
The volume of a gas at 20°C is 500. mL. Find its volume at standard temperature
if pressure is held constant.
Convert temperatures:
If you know that cooling a gas decreases its volume, then you know that- mL will have to be multiplied by a fraction (made up of the Kelvin
temperatures) that has a smaller numerator than the denominator. So