a sheet of gold weighing 10.0g and at a temperature of 18.0 degrees c is placed flat on a sheet of iron weighing 20.0g and a tenp. of 55.6 degrees c. what is the final temp. of the combined metals? assume that no heat is lost to the surroundings.

Answer 1

heat absorbed by gold + heat lost b Fe = 0
[mass Au x specific heat Au x (Tfinal-Tintial)] + [mass Fe x specific heat Fe x (Tfinal-Tintial)] = 0
Tfinal is the only unknown.