×

What is the heat transfer when internal energy decreases by 200 J and the work done by the system is 50 J?

What is the heat transfer when internal energy decreases by 200 J and the work done by the system is 50 J?

Explanation
  • According to the first law of thermodynamics, ΔU = Q - W.
  • Rearrange for heat transfer (Q): Q = ΔU + W.
    Here, ΔU = -200 J (decrease in internal energy) and W = 50 J.
    Q = (-200 J) + (50 J) =     -150 J (heat lost).