1. 5.0 g of copper was heated from 20°C to 80°C. How much energy was used to heat Cu? (Specific heat capacity of Cu is 0.092 cal/g °C) show work

The amount of energy that was used to heat Cu is 27.6 cal

calculation

Heat (Q) = M (mass) x c (specific heat capacity) x ΔT (change in temperature)

where;

Q=?

M = 5.0 g

C=0.092 cal/g°C

ΔT = 80°c-20°c=60°C

Q is therefore = 5.0 g x 0.092 cal / g°c x 60°c = 27.6 cal