Question

The amount of heat required to riase the temperature of a body from 20° to 60°C is ( water equivalent is 10 g )

Answer 1

Mass of the body is equal to 10 grams
initial temperature of the body is equal to 20 degree Celsius
final temperature of the body= 60 degree Celsius
specific heat capacity of water is equal to 1 calorie per gram degree Celsius

then, heart required = mass x specific heat capacity x change in temperature
= 10 x 1 x (60 - 20)
= 10 x 40 = 400 cal


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