In isobaric processes, the amount of work is the integral of pressure with respect to this quantity.
In an isothermal process, the change in entropy is proportional to the natural log of the ratio of the final and initial value of this quantity. This is constant in isochoric [eye-suh-KAWR-ik] processes. In isobaric processes, the amount of work is the integral of pressure with respect to this quantity. Enthalpy equals internal energy plus pressure times this quantity. Name this quantity that varies inversely with pressure in Boyle's Law and is multiplied by pressure in the Ideal Gas Law, often measured in liters, gallons, or cubic length units.
In an isothermal process, the change in entropy is proportional to the natural log of the ratio of the final and initial value of this quantity.
volume