7.32 Using the enthalpy data for superheated steam at 0.0 bar pressure from the steam tables, develop a heat capacity equation for steam of the form Cp a + b + cT2 over the temperature interval 200-500C. Plot your equation over the tem- perature range 50-750C and show how it fits the steam table values which lie outside the range of validity of your equation (200-500C). Superimpose a plot of the C, equation for steam given in the Appendix. 22 YLA