Answer: 299.7 J
Explanation:
The heat (thermal energy) absorbed by the iron skillet can be found using the following equation:
[tex]Q=m.C.\Delta T[/tex] (1)
Where:
[tex]Q[/tex] is the heat
[tex]m=45 g[/tex] is the mass of the element (iron in this case)
[tex]C[/tex] is the specific heat capacity of the material. In the case of iron is [tex]C=0.444\frac{J}{g\°C}[/tex]
[tex]\Delta T=T_{f}-T_{i}=21\°C - 6\°C= 15\°C[/tex] is the variation in temperature
Knowing this, lets rewrite (1) with these values:
[tex]Q=(45 g)(0.444\frac{J}{g\°C})(15\°C)[/tex] (2)
Finally:
[tex]Q=299.7 J[/tex]
