In a cryogenic experiment you need to keep a container at 125C although it gains 100 W

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In a cryogenic experiment you need to keep a container at −125°C although it gains 100 W due to heat transfer. What is the smallest motor you would need for a heat pump absorbing heat from the container and rejecting heat to the room at 20°C?

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Fundamentals of Thermodynamics

ISBN: 978-0471152323

6th edition

Authors: Richard E. Sonntag, Claus Borgnakke, Gordon J. Van Wylen

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Question Posted: Dec 04, 2009 02:47 AM

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In a cryogenic experiment you need to keep a container at 125C although it gains 100 W

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Fundamentals of Thermodynamics

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