How much heat does it take to boil 87.1g of copper? The heat of fusion of copper is 49 cal/g and the heat of vaporization is 1212 cal/g

Answer 1

To boil copper will take several thermodynamic steps:

(1) Raise temp of solid Cu to the melting point

(2) Melt the Cu at the melting point (phase change)

(3) Raise temp of liquid Cu to the boiling point

(4) Boil the Cu at the boiling point (phase change)

In addition to the heats of fusion and vaporization which are provided, we also need to know the specific heat (C) for solid Cu and for liquid Cu. Also, we need to know the melting point and boiling point for Cu. And finally, we need to know the initial temperature that the 87.1 g of Cu is at, i.e. the starting temperature of the Cu.

I looked up the specific heat values and found the following:

C for Cu(s) = 0.38 J/gº

C for Cu(l) = 0.49 J/gº

I'll leave it to you to look up the melting point and boiling point for Cu as well as the initial temperature of the Cu, and then RESUBMIT the question with all of the required information. I, or someone else, will then show you how to find the heat required to boil 87.1 g of Cu.