Physics

Problem

A heat engine absorbs

500\,\text{J}

of heat from a reservoir at

600\,\text{K}

and rejects

350\,\text{J}

to a reservoir at

300\,\text{K}

in each cycle. The change in entropy of the universe for one cycle is nearly a)

0\,\text{J\,K}^{-1}

+1.08\,\text{J\,K}^{-1}

+0.33\,\text{J\,K}^{-1}

-0.33\,\text{J\,K}^{-1}