The specific heat capacity of lead is 0.13j/g degree C.

Question

How much heat (inJ) is required to raise temperature of 16.9 g of lead from 27.3 degree to 35.7 degree C?

-3 sig fig

Answer 1

The specific heat capacity tells us how much energy is stored in a certain amount of a compound at a temperature.

The equation for heat (q) is: q=specific heat (s) * mass (m) *DeltaT(Tf-Ti)

Delta T will always be Tfinal - Tinitial

in this case q=0.13J/(g*C)*(16.9 g of lead)*(35.7C-27.3C)= 18.5 J note that the units cancel out.