What is the change in internal energy ($\Delta$E) when a system is heated with 35 J of energy while it does 15 J of work?

Question

Quizplus · Accepted Answer

The change in internal energy ($\Delta E$) in a system can be calculated using the first law of thermodynamics, which is $\Delta E = Q - W$, where $Q$ is the heat added to the system and $W$ is the work done by the system. Here, $Q = 35 J$ and $W = 15 J$, so $\Delta E = 35 J - 15 J = 20 J$.

What Is the Change in Internal Energy Δ\DeltaΔ E) When a System Is Heated with 35 J of When

What Is the Change in Internal Energy $\Delta$ E) When a System Is Heated with 35 J of When