What is the change in internal energy of 2 mole of air (Cv = 2.1 X 10� – McqOptions

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1.	What is the change in internal energy of 2 mole of air (Cv = 2.1 X 10⁴ J/mole°C), if its temperature changes from 10°C to 20°C?
A.	420 kJ
B.	540 kJ
C.	840 kJ
D.	1050 kJ
Answer» B. 540 kJ

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