How much heat is absorbed by a 47g iron skillet when its temperature rises from 12oC to 20oC?

Answer

169.2 J

Explanation

Given in the question,

mass of iron = 47g

specific heat capacity of iron = 0.450 (J/g 0C)

initial temperature = 12° C

final temperature = 20° C

The energy q needed to increase an object of mass m and specific heat capacity c by a temperature θ is given by:

q = mcΔt

q = 47 (0.45) (20-12)

q = 169.2 J