What is the change in internal energy ($\Delta$E) of a system when it loses 10 kJ of energy and 5,000 J of work is done on the system?

Question

Quizplus · Accepted Answer

The change in internal energy can be calculated using the formula ΔU = Q - W, where Q is the heat transferred and W is the work done on the system. Here, ΔU = -10 kJ - 5,000 J = -10.005 kJ or -10,005 J. However, the choices are given in different units, so we need to convert. The best choice is C, which gives the answer in kJ and is the closest to our calculated value.  So, ΔU = (F1F1F1S1 - F1F1F10) = -10.005 kJ.

What Is the Change in Internal Energy Δ\DeltaΔ E) of a System When It Loses 10 KJ of of a System

What Is the Change in Internal Energy $\Delta$ E) of a System When It Loses 10 KJ of of a System