Thermodynamics: Internal Energy and Enthalpy

leah3000

H = U+ pV
pV = nRT

H= U+ nRT

H= H (T)

I dont understand the transition from U+ nRT to H (T)

Can someone explain this?

I get that H = U + pV

But how is H= U+ nR

Useful nucleus

For a monoatomic ideal gas, U=(3/2) PV. Hence, H=(5/2) PV=(5/2) nRT
Which shows that H for an ideal gas is a function of T alone ,i.e, H=H(T).
Of course it is also function of n since it is extensive quantity. However, this dependence is easy to get rid of by defining h=H/n which is an intensive quantity.

leah3000

thank you...that clears it up!