Question #198200

Why does it requires great amount of heat to increase the temperature of 10kg water from 10° to 20°


1
Expert's answer
2021-05-26T10:31:17-0400

Because water has great specific heat capacity c=4200Jkg⋅°Cc= 4200\frac {J}{kg\cdot °C} and

Q=cmΔt=4200⋅10⋅(20−10)=0.42 MJ.Q=cm \Delta t=4200\cdot 10\cdot (20-10)=0.42~MJ.



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