Physics
Give one example each where high specific heat capacity of water is used (i) as coolant, (ii) as heat reservoir.
Answer
(i) Used as a coolant — Radiators in car and generator use water for cooling. Water in car radiator can absorb more heat without much rise in temperature due to it's high specific heat capacity. Hence, it acts as an effective coolant.
(ii) Used as heat reservoir — In cold countries, water is used as heat reservoir for wine and juice bottles to avoid their freezing. The reason is that water due to it's high specific heat capacity can impart a large amount of heat before reaching to it's freezing point. Hence, bottles kept in water remain warm and do not freeze when there is considerable fall in temperature.
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