Thermodynamics Question 246

Question: 2 k mol of hydrogen at NTP expands isobarically to twice its initial volume. The change in its internal energy is (Cv=10kJ/kg.K and atm pressure =1×105N/m2)

Options:

A) 10.9 MJ

B) 9.10 MJ

C) 109 MJ

D) 1.09 MJ

Show Answer

Answer:

Correct Answer: A

Solution:

[a] ΔU=nC,ΔT=2×103×20×273=10.9MJ.



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