PPT Slide
- The state of a pure, compressible substance can be determined by values of two thermodynamic properties. Ex: P=P(v, T)
- u=u(T,v): internal energy is a function of two variables T and v (or any other two independent properties such as P, h)
- The internal energy can be varied by altering these two properties:
- Define constant-volume specific heat cv (can sometimes be considered as heat capacity, the ability of a substance to absorb or store energy.
- Similarly, the enthalpy can be described by:
- Define constant-pressure specific heat cp