Question

what is the value of enthalphy​

Answer 1

it is a quantity equivalent to total heat content of a system.

Answer 2

The SI unit for specific enthalpy is joule per kilogram. It can be expressed in other specific quantities by h = u + pv, where u is the specific internal energy, p is the pressure, and v is specific volume, which is equal to 1ρ, where ρ is the density.