Inla cold store operating at minus 23°C in an ambient temperature of 27°C, a 250 W cold room light is mistakenly left on after close of work at 6 pm one Friday until 6 am the following Monday morning. If the refrigerating plant has a Carnot efficiency of 40%, what will be the additional cost of power caused by the light if the electricity tari is GH¢1.2 per kWh:

Inla cold store operating at minus 23°C in an ambient temperature of 27°C, a 250 W cold room light is mistakenly left on after close of work at 6 pm one Friday until 6 am the following Monday morning. If the refrigerating plant has a Carnot efficiency of 40%, what will be the additional cost of power caused by the light if the electricity tari is GH¢1.2 per kWh:

Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter22: Heat Engines, Entropy, And The Second Law Of Thermodynamics

Section: Chapter Questions

Problem 22.10P: A heat pump has a coefficient of performance of 3.80 and operates with a power consumption of 7.03 ...

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