why water is used in a hot (water) bag? Explain in 2 marks
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why water is used in a hot (water) bag? Explain in 2 marks
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Explanation:
Water has highest specific heat compared to other liquids , therefore water gives out largest amount of heat for a fixed temperature change , as compared to other liquids i.e. it cools down slowly than any other liquid . Hence used in hot water bags so that bag remains hot for a long time .
Explanation:
Water has highest specific heat compared to other liquids , therefore water gives out largest amount of heat for a fixed temperature change , as compared to other liquids i.e. it cools down slowly than any other liquid . Hence used in hot water bags so that bag remains hot for a long time .