Originally Posted by **oz93666** "How much energy must be removed ... to turn liquid copper ...to solid copper "
First we need to know is the answer +ve or -ve .... Energy** will** be removed , you are cooling the copper down so the answer is +ve
So this eliminates answers a b and e .... **latent heat of fusion** is the heat removed in turning any liquid into a solid .
You have to use search to find it's value for copper
In addition there is the small amount of heat removed in cooling from 1083 to 1000 . search specific heat of copper.
Give this calculation in your next post and we can move forward . **NONE OF THE CHOICES GIVEN (a b c d or e) ARE CORRECT ** |

Ive been trying to solve this for a while now and i havent been getting any of the answers. I tried doing it this way:

Qtot= Mc(Tf-Ti)+ MLf

= (1.5)(387)(1000-1083)+ (1.5)(134x10^4)

Im probably doing this incorrectly anyway. But i just need to find whatever is closest to the answers given.