What is the final temperature of the chromium?

Question

A sample of solid chromium is heated with an electrical coil. If 72.1 Joules of energy are added to a 13.3 gram sample initially at 24.1°C

Answer 1

q = mC∆T

q = heat = 72.1 J

m = mass = 13.3 g

C = specific heat = look it up

∆T = ?

Solve for ∆T

∆T = 72.1 J / (13.3 g)(C) Just look up C for chromium, plug it in and solve for ∆T. Then add that value to 24.1 to get the final temp.