I know the formula dH=dE-PdV
2006-10-14 09:11:59 · 2 answers · asked by All I want is to be LOVED! 2 in Science & Mathematics ➔ Chemistry
In thermodynamics, the quantity enthalpy, symbolized by H, also called heat content, is the sum of the internal energy of a thermodynamic system plus the energy associated with work done by the system on the atmosphere, which is the product of the pressure times the volume. The term enthalpy is composed of the prefix en-, meaning to "put into", plus the Greek suffix -thalpein, meaning "to heat".
2006-10-14 09:21:30 · answer #1 · answered by Answerer17 6 · 0⤊ 0⤋
Enthalpy is the energy difference between the reactant and the product. Enthalpy is calculated by using the energy of the product minus the energy of the reactant. If change in enthalpy is positive that means the reaction is endothermic. On the other hand, if the enthalpy is negative the reaction is exothermic
2006-10-14 09:28:35 · answer #2 · answered by pyx 2 · 0⤊ 0⤋