Physics

Problem

A reservoir contains

500\,\text{J}

of thermal energy at

600\,\text{K}

. The surroundings are at

300\,\text{K}

. An uncontrolled event within the reservoir raises its entropy by

0.30\,\text{J/K}

without changing its energy. By how many joules is the maximum extractable work from the reservoir reduced as a result of this entropy increase?