A system loses 14.2 kJ of heat while performing 7.2kJ of

work on the surroundings. If the initial internal energy, E, is 77.6 kJ, what is the final value of E?

56.2 kJ
70.6 kJ
99.0 kJ
84.6 kJ

1 answer

What is 77.6-14.2-7.2?