An electric heater supplies heat to a system at a rate of 100 W. If the system performs work at a rate of 75 J / s, then the rate at which internal…

An electric heater supplies heat to a system at a rate of $\displaystyle 100$ W. If the system performs work at a rate of $\displaystyle 75 \mathrm{~J} / \mathrm{s}$, then the rate at which internal energy increases will be :