select the correct answer.\na thermodynamic system undergoes a process in which its internal energy…

select the correct answer.\na thermodynamic system undergoes a process in which its internal energy decreases by 500 joules. at the same time, 220 joules of work is done on the system. what is the amount of heat transferred to or from the system?\na. 280 joules\nb. 720 joules\nc. -280 joules\nd. -720 joules\ne. 0 joules

select the correct answer.\na thermodynamic system undergoes a process in which its internal energy decreases by 500 joules. at the same time, 220 joules of work is done on the system. what is the amount of heat transferred to or from the system?\na. 280 joules\nb. 720 joules\nc. -280 joules\nd. -720 joules\ne. 0 joules

Answer

Explanation:

Step1: Recall the first - law of thermodynamics

The first - law of thermodynamics is $\Delta U = Q+W$, where $\Delta U$ is the change in internal energy, $Q$ is the heat transfer, and $W$ is the work done on the system.

Step2: Identify the given values

We are given that $\Delta U=- 500\ J$ (since the internal energy decreases) and $W = 220\ J$ (work done on the system).

Step3: Solve for $Q$

Rearrange the first - law formula to solve for $Q$: $Q=\Delta U - W$. Substitute the given values: $Q=-500 - 220=-720\ J$.

Answer:

D. -720 joules