After transfer of 1.60 kJ of thermal energy to a 0.451-kg block of copper the temperature...
After transfer of 1.60 kJ of thermal energy to a 0.451-kg block of copper the temperature is 44.1 °C. The specific heat capacity of copper is 0.385 J g-1 °C-1.
Calculate the initial temperature of the copper.
Homework Answers
Ans :
Heat = mass x specific heat x change in temperature
heat = 1.60 KJ = 1600 J
mass = 0.451 g = 451 g
specific heat = 0.385 J g-1 °C-1.
let the change in temperature be T
putting values :
1600 J = 451 g x 0.385 J g-1 °C-1.x T
T = 9.21oC
So the initial temperature of block = 44.1oC - 9.21oC
= 34.9oC
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