# I Why we use enthalpy when we calculate latent heat?

1. May 11, 2017

### seungwoo Park

Why we use enthalpy(h) instead of internal energy(u) when we consider latent heat?

2. May 11, 2017

### BvU

Because a phase change is generally accompanied by a volume change and therefore involves pV work as well.

 I notive you haven't had the customary

Hello seungwoo,

So here it is, albeit belated !

Last edited: May 11, 2017