Glossary

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enthalpy
A thermodynamic state function, symbol H, that equals internal energyA thermodynamic function corresponding to the energy of a system; represented by the symbol U or E. plus pressureForce per unit area; in gases arising from the force exerted by collisions of gas molecules with the wall of the container. x volume; the change in enthalpyA thermodynamic state function, symbol H, that equals internal energy plus pressure x volume; the change in enthalpy corresponds to the energy transferred as a result of a temperature difference (heat transfer) when a reaction occurs at constant pressure. corresponds to the energy transferred as a result of a temperatureA physical property that indicates whether one object can transfer thermal energy to another object. difference (heatEnergy transferred as a result of a temperature difference; a form of energy stored in the movement of atomic-sized particles. transfer) when a reaction occurs at constant pressure.