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The law of substitution states that if the output is constant, it is profitable to substitute one input factor for another as long as its is cheaper than the one being substituted.
Charles's law states that the volume of a given mass of a gas is directly proportional to its absolute temperature, its pressure kept constant.
Hooke's law states that;For a helical spring or any elastic material, the extension on the spring is directly proportional to the stretching force provided the elastic limit is not exceeded.
Hess law states that;The energy change in converting reactants to products is the same regardless of the route followed.
Boyles law states that;The volume of a fixed mass of a gas is inversely proportional to its pressure provided the temperature remains constant.