The increase in internal energy of the system is 100 J when 300 J heat is supplied to it. What is th

Question

The increase in internal energy of the system is 100 J when 300 J heat is supplied to it. What is the amount of work done by the system?

Professor PC Thomas Classes · Answer

By first law $\Delta U = q + w$. $100 = 300 + w \Rightarrow w = -200 \mathrm{~J}$.