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The specific heat of water is...

The specific heat of water is

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(i) Even a small rise in temperature in the surroundings will raise the temperature of the body because the specific heat of alcohol is much less than the specific heat of water. So, in order to cool the body, more sweating will take place.
(ii) As there is less H bonding in alcohol, it will get evaporated faster. The alcohol will be evaporated at such a faster rate that the liquid has to be ingeasted all the time.
(iii) Ice which floats on water helps aquatic life to exist even in winter as water insulates the heat from liquid below it to go back to the surroundings. Solid alcohol does not have such special properties.
(b) Praise is to the almighty that has so thoughtfully given such special properties to water and made it a liquid that could sustain life on earth.
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An electric heater of resistance 10Omega connected to 220 V power supply is immersed in the water of 1 kg. How long the electrical heater has to be switched on to increase its temperature from 30^(@)C to 60^(@)C . (The specific heat of water is s=4200J kg^(-1) /C )

Specific heat S =

Knowledge Check

  • The specific heat capacity of water is ____ cal//g^(@)C

    A
    10
    B
    1
    C
    1.5
    D
    0.5

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