How quickly does a 1kW appliance use energy?

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Terrible with math and I barely understand the concepts but if my fridge is a 1kw fridge, how long of running it at its “maximum” would it take to use 8700kj(average adult recommendation)

Looking for the math to be explained too please.

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6 Answers

Anonymous 0 Comments

A kilojoules is one kilowatt per second. I don’t know where the 8790 KJ number you cited comes from, but it’s enough to run the refrigerator for 8.7 seconds.

8700 KJ / 1000 W = 8.7 seconds

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