Science

posted by Om Gopal Mishra

A child has a fever. The temperature of his body is recorded as 103 degree farenheit by a thermometer . A doctor advised his mother to give medicine to lower the temperature. As we know evaporation causes cooling. The medicine given to child enhanced the evapouration. Calculate the rate of evaporation by this medicine if the temperature of the body of the child falls to 99 degree F in 25 min. Mass of child is 20kg,specific heat of human body is 4.2J/g/deg C and latent heat of vaporization is 2436J/g.

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