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A refrigerator whose coefficient of perf...

A refrigerator whose coefficient of performance is `12.5` extracts heat from the cooling compartment at the rate of `100 J//"cycle"`. How much electric energy (in joule) is consumed/cycle. How much electric energy (in joule) is consumed/cycle is by the refrigerator?

Text Solution

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Here, `COP= 12.5`
`Q_(2)= 100 J//"cycle", W= ?`
From `COP= (Q_(2))/W`
`W=(Q_(2))/(COP)= (100)/(12.5)= 8J`
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