PPT Slide
- For many gases, the ideal gas assumption is valid and the P-v-T relationship can be simplified by using the ideal gas equation of state: Pv=RT (Compressibility factor Z=1)
- For an ideal gas, it can be shown that the specific internal energy u is a function of temperature only, u=u(T)
- Accordingly, specific enthalpy is a function of temperature only, since h(T)=u(T)+pv=u(T)+RT
- Physically, a gas can be considered ideal only when the intermolecular forces are weak. This usually happens in low pressure and high temperature ranges.