Question

1.    The specific heat capacity of zinc is 0.388 J/g.˚C. Calculate the initial temperature of zinc block of mass 38g if the amount of heat supplied to it was 220 J and the maximum temperature reached by the zinc block was 55˚C.

Answer 1

$H=mc\Delta\theta$

$220=38×0.388(55-\theta)$

$55-\theta=14.92$

$\theta=40.08°C$