What is the change in internal energy when 10 kg mol of Oxygen is heated from 200 K to 400 K at constant volume (Cv = 4000 J/(Degree Celsius)(Kg.mole))?

What is the change in internal energy when 10 kg mol of Oxygen is heat

1.	What is the change in internal energy when 10 kg mol of Oxygen is heated from 200 K to 400 K at constant volume (Cv = 4000 J/(Degree Celsius)(Kg.mole))?
A.	2 MJ
B.	4 MJ
C.	6 MJ
D.	8 MJ
Answer» E.