What is the effect of a change in pressure on the physical state of matter? Explain with an example of a gas.

(N/A) The physical state of matter can be changed by increasing or decreasing the pressure applied to it.
For example,a gas can be liquefied by applying high pressure. This occurs because,under high pressure,the molecules of the gas are forced to come closer to each other,which increases the intermolecular forces of attraction,thereby converting the gas into a liquid state.