Question

In a gasoline engines cylinder, 45j of work is done by the gas and 175 j Is removed from the gas as heat. What is the change in the internal energy of gas?

Answer 1

The first law of thermodynamics states that the change in internal energy of a system equals the net heat transfer into the system minus the net work done by the system. In equation form, the first law of thermodynamics is ΔU = Q − W.

The internal energy of ideal gas is U = cV The change in internal energy for ideal gas is therefore ∆U = cV ∆T, where cV is specific heat (at constant volume), and ∆T is change in tem- perature.

Step-by-step explanation:

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