Heat is supplied uniformly at the rate of 100W to 1.0 x 1...
Heat is supplied uniformly at the rate of 100W to 1.0 x 10−2kg of a liquid for 20 seconds. If the temperature of the liquid rises by 5oC, then the specific heat capacity of the liquid is
2.0 x 102Jkg−1K−1
2.0 x 102Jkg−1
4.0 x 104Jkg−1K−1
4.0 x 104Jkg−1
Correct answer is C
Heat energy = Electrical Energy
MCθ = power x time
5 x 1 x 10−2 x C = 100 x 20
C = 2005×102
= 4 x 104 J/kg/oC
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