Question

if 1,000 J of energy is added to a steak engine, and 400 J of work is done by the engine, how much thermal energy ends up being added to the engine

Answer 1

To indicate that energy has been added or removed as heat or work to a system, the internal energy of the system is calculated.

This is because:

1- the internal energy follows the formula:

ΔU = Q - W

2- the internal energy is indicated by any alternation in temperature

Therefore, the answer is:

internal energy