A Heat Pump Uses 100 J of Work Output Heat

question 31

Multiple Choice

A heat pump uses 100 J of work output heat at some temperature.If the heat pump withdraws 60 J of heat from some lower temperature,then what is the coefficient of performance for the heat pump?

• A) 1.6
• B) 2.0
• C) 2.4
• D) 2.8

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