Question : Water is used in a hot water bag because:
Option 1: it is easily available
Option 2: it has high specific gravity
Option 3: it has high specific heat
Option 4: it is a liquid substance
Correct Answer: it has high specific heat
Solution : The correct option is it has a high specific heat .
Water is used in a hot water bag because it has a high specific heat capacity, which allows it to absorb and maintain a substantial quantity of heat energy while only undergoing a minor temperature increase. When put in a hot water bag, this property allows water to give sustained and progressive warmth, making it perfect for medicinal and warming purposes.
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