The gas was given 80 kJ of heat, it did 200 kJ of work. What is the change in his internal energy equal to?

The gas was given 80 kJ of heat, it did 200 kJ of work. What is the change in his internal energy equal to? How has his temperature changed?

The change in internal energy will be:

ΔQ = 80 – 200 = -120 kJ.

The temperature will drop.



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