Question
Explain, why water is considered as best liquid for quenching thirst?
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Answer
Water has the highest specific heat capacity of $4.2 Jg ^{-1}{ }^{\circ} C ^{-1}$ and hence it can absorb large amount of heat energy, without rising in temperature sufficiently. Thirst is the natural signal, when body produces more heat energy than required. Thus, water is ideal for quenching thirst, because it can absorb large amount of heat energy.
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