A heat engine absorbs of heat from a reservoir at and rejects to a reservoir at in…

PHYSICS · Single correct · CBSE · Physics · Thermodynamics · Thermodynamics

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}

(b)

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

(c)

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

(d)

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