Which law validates the statement that at constant volume, the pressure of given mass of a substance is directly proportional to the temperature (K)?
													Which law validates the statement that at constant volume, the pressure of
given mass of a substance is directly proportional to the temperature (K)?												
												
												
		 
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Gay-Lussac’s law was given by French chemist Joseph Louis Gay-Lussac. Gay-Lussac’s law states that at constant volume, the pressure of an ideal gas is directly proportional to its absolute temperature.
Gay-Lussac’s law is a gas law which states that the pressure exerted by a gas (of a given mass and kept at a constant volume) varies directly with the absolute temperature of the gas.