Enthalpy: Difference between revisions

Revision as of 16:27, 23 February 2007

Definition of the enthalpy, H

H = U + p V

(-pV) is a conjugate pair. The differential of this function is

d H = d U + p d V + V d p

d H = T d S - p d V + p d V + V d p

thus we arrive at

d H = T d S + V d p

For H(S,p) we have the following total differential

d H = {(\frac{\partial H}{\partial S})}_{p} d S + {(\frac{\partial H}{\partial p})}_{S} d p

Revision as of 18:08, 22 February 2007 (edit) Carl McBride (talk \| contribs) mNo edit summary ← Older edit		Revision as of 16:27, 23 February 2007 (edit) (undo) Carl McBride (talk \| contribs) mNo edit summary Newer edit →
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	:<math>dH=\left(\frac{\partial H}{\partial S}\right)_p dS + \left(\frac{\partial H}{\partial p}\right)_S dp</math>		:<math>dH=\left(\frac{\partial H}{\partial S}\right)_p dS + \left(\frac{\partial H}{\partial p}\right)_S dp</math>
			[[Category: Classical thermodynamics]]