In the chamber, as a result of fuel combustion, an amount of heat equal to 600 J was released

In the chamber, as a result of fuel combustion, an amount of heat equal to 600 J was released, and the internal energy increased by 400 J. What work does the engine do?

To determine the value of the work done by the engine used, we apply the formula: A = Q – ΔU.

Variables: Q – heat released in the combustion chamber (Q = 600 J); ΔU – increase in the internal energy of the engine used (ΔU = 400 J).

Calculation: A = Q – ΔU = 600 – 400 = 200 J.

Answer: The work of the engine used is 200 J.