How much heat must be added to a 8.21 g sample of gold to increase its temperature by 6.2oC ? The specific heat of gold is 0.13 J/goC

Known :

m = 8.21 g

∆T = 6.2°C

c = 0.13 J/g°C

Solution :

Q = m • c • ∆T

Q = (8.21 g)(0.13 J/g°C)(6.2°C)

Q = 6.62 J

the mantle

explanation:

earth is divided into three layers: the crust or the outermost layer on which we live; the underlying, middle layer - the mantle - and the core (the innermost layer of earth).