A gas undergoes two successive processes: Process I: absorbs of heat and does of work…

PHYSICS · Single correct · A Level · Physics · Engineering physics · Engineering physics

Problem

A gas undergoes two successive processes: Process I: absorbs

200\,\text{J}

of heat and does

250\,\text{J}

of work on the surroundings. Process II: releases

150\,\text{J}

of heat while

100\,\text{J}

of work is done on the gas. Determine the net change in internal energy

\Delta U_{\text{net}}

for the gas after both processes. (a)

+100\,\text{J}

(b)

-100\,\text{J}

(c)

-350\,\text{J}

(d)

+200\,\text{J}