Explanation:The decrease in volume as a result in an increase in pressure is BEST explained by the fact that there is a large relative distance between gas molecules. This explains the property of compressibility, exhibited by gases under pressure.
Pushing down on the piston
causes an increase in pressure and a decrease in the volume of the gas in the
cylinder. This is BEST explained by the fact that the pressure is always
inversely proportional with volume at constant temperature and number of moles
of substance.
