Question

A sheet of gold weighing 11.4 g and at a temperature of 15.6°C is placed flat on a sheet of iron weighing 24.2 g and at a temperature of 54.9°C. What is the final temperature of the combined metals? Assume that no heat is lost to the surroundings.

- (11.4)(0.129)(Tf – 15.6) = (24.2)(0.449)(Tf – 54.9)

Tf = 50.9 C

this isnt correct

Answer 1

Your set up looks ok but I don't get that answer when I do the math using your numbers. I get something like 50.2. By the way, I looked up Fe and found 0.444 but I assume you are using numbers supplied with the problem.