Boyle’s Law is an ideal gas law, the volume of a gas is inversely proportional to its absolute pressure at constant temperature.
Reference Definition from Wikipedia: A modern statement of Boyle’s Law is the absolute pressure exerted by a given mass of an ideal gas is inversely proportional to the volume it occupies if the temperature and amount of gas remain unchanged within a closed system. (PV = k, Pressure multiplied by volume equals some constant k)
Related Definitions in the Project: The Science Definitions