The heat capacity for iron is 0.444
Equation
H = m * c * deltat
Givens
m = 26 grams
c = 0.444 J/(g oC)
Δt = 25° - 5° = 20°
Solution
H = 26 grams * 0.444 J/g * C° * 20°
H = 231 = 2.31 * 10^2 technically there should only be 1 sig digit, but I'll give you 3. You can do the rounding.
