A general heat pump transfers 450 kJ of heat to an energy re

A general heat pump transfers 450 kJ of heat to an energy reservoir whose temperature is 27o.C. It recieves heat from an energy reservoir whose temperature is 7oC. What is the minimum entropy change of the low-temperature reservoir. PLEASE SHOW YOUR WORK

Solution

Heat Transfer Q = 450 KJ

Entrphy = Rate of Change of Heat / Temperature

Temperature = 70 C = 70+273 = 343 K

= 450 / 343

= 1.31 Kg/K