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At a temperature of 25 °C, the heat required to raise the temperature of 1 kg of water by 1 K is 4179.6 joules, meaning that the specific heat of water is 4179.6 J·kg−1·K−1. Does this also mean that to reduce temperature of 1 kg of water by 1 K, 4179.6 joule heat has to be removed?

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Yes, the process works both ways.

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  • $\begingroup$ AKA : Energy is not created or destroyed. $\endgroup$ May 23 '20 at 14:52

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