Module 3 :
Lecture 11 : Phase-Change Process of Pure Substances
 



Specific internal energy and enthalpy

 

 

or,

[on a unit mass basis]  

 

or,

[on per mole basis]  

 

Data for specific internal energy, u and enthalpy, h can be calculated from the property tables in the same way as for specific volume.

 

(11.10)

 

Increase in specific internal energy is often denoted by The specific enthallpy is

(11.11)

Increase in specific enthalpy is often denoted by .