Question

You've stolen a 12.4-kg gold bar from Fort Knox.

You want to melt it down as part of a complicated scheme to hide the evidence from obvious sight.

a) If the gold is initially at a temperature of 25 ∘∘C, and you add 3 x 10⁶ J of heat to it, what is its final temperature (in Celsius)?

b) What phase is it in when you finish? Is it all the same phase?

Answer 1