Project ForgeThermodynamics
First Law of Thermodynamics
GATE 2017
Easy
A heat pump absorbs 10 kW of heat from outside environment at 250 K while absorbing 15 kW of work. It delivers the heat to a room that must be kept warm at 300 K. The Coefficient of Performance (COP) of the heat pump is __________.
1.667(± 0.05 accepted)
Explanation
By energy balance, heat delivered Qh = Qc + W = 10 + 15 = 25 kW. COP of a heat pump = Qh/W = 25/15 ≈ 1.667.
Source: GATE ME 2017 Session 1 (ME-1) (2017)
This question is part of a 15-day revision cycle — sign in and Project Forge will bring it back the day before you'd forget it.