Determine the change in the specific internal energy of hydrogen (H2), in kJ/kg, as it is heated from 400 to 1000 K, using:
a.) The empirical specific heat equation (Shomate Eqn) from the NIST Website.
b.) The CoV value at the average temperature. (Use the heat capacity polynomial to determine this CoV value.)
c.) The CoV value at room temperature, 25oC. (Use the heat capacity polynomial to determine this CoV value.)
In your analysis, be sure to include a comparison of these three methods. (4 pts)
HINT: To start this problem, copy your spreadsheet from #3 after you solved it, and then modify it for this problem. Some of the calculations are the same! Part (a) Integral of CoV with respect to T...just like in class. Parts (b) and (c) are easier. Just evaluate CoV at ONE T and then assume CoV has this value and it is constant. Remember that you are using the IDEAL GAS heat capacity.
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