Heat Transfer/ Specific Heat Problems. Steps on how to do it please.

Question

The specific heat of iron is 0.4494 J/g x oC. How much heat is transferred when a 4.7 kg piece of iron is cooled from 180 oC to 13 oC? Remember you must use the same units so you will have to convert your mass to grams before you beg

Answer 1

4.7kg x 1000 g/kg = 4700 g

q = (4700 g)(0.4494 J/gº)(-167º)

q = -352,734 J of heat transferred = -350,000 J ( 2 sig. figs.) = -350 kJ (2 sig. figs.)