951 mol of N2 gas is in a constant volume 235.6 L turbine at 25 °C. If 11.36 MJ of heat energy is added the gas will heat up to 600 °C.  a. calculate CP,m= ΔH/ΔT/n. b. If we Google the heat capacity we find CP,m = 29.135 J/K/mol at room temperature. The result from pt. a is slightly higher! Can you explain the discrepancy?

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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Let’s say 951 mol of N2 gas is in a constant volume 235.6 L turbine at 25 °C. If 11.36 MJ of heat energy is added the gas will heat up to 600 °C. 
a. calculate CP,m= ΔH/ΔT/n.
b. If we Google the heat capacity we find CP,m = 29.135 J/K/mol at room temperature. The result from pt. a is slightly higher! Can you explain the discrepancy?

Expert Solution
Step 1

Given:

No. of moles of N2, n = 951 mol

heat added , ΔH = 11.36 MJ

T1 = 25 °C

T2 = 600 °C

To find:

(a) CP,m

(b) reason for discrepancy

 

 

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