Enthalpy: Difference between revisions

Revision as of 18:27, 23 February 2007

Definition of the enthalpy, H

\left.H\right.=U+pV

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

\left.dH\right.=dU+pdV+Vdp

\left.dH\right.=TdS-pdV+pdV+Vdp

thus we arrive at

\left.dH\right.=TdS+Vdp

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

dH=\left({\frac {\partial H}{\partial S}}\right)_{p}dS+\left({\frac {\partial H}{\partial p}}\right)_{S}dp

Revision as of 20:08, 22 February 2007 (edit) Carl McBride (talk \| contribs) mNo edit summary ← Older edit		Revision as of 18:27, 23 February 2007 (edit) (undo) Carl McBride (talk \| contribs) mNo edit summary Newer edit →
Line 18:		Line 18:

	:<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]]