How do you calculate the heat required to melt 15 kg of silver?

1 Answer
Apr 16, 2014

You multiply the mass of the silver by its heat of fusion.

The heat of fusion (ΔH_("fus")) is the amount of heat required to melt a unit mass of a solid.

q = mΔH_("fus"), where q is the amount of heat and m is the mass of the sample.

The heat of fusion of silver is 111 kJ/kg, so

q = mΔH_("fus") = 15 kg × (111" kJ")/(1" kg") = 1700 kJ