An 800-W heater raises the temperature of 4 kg of soup by 40 °C in 13 minutes.

(a)

How much energy is transferred to the soup if there is no energy loss to the surroundings?

Q=0.16*c kJ

Explanation:

Heat transfer and energy changes is related by the equation

Q=mcΔT

where

Q=heat transfer

m=mass of substance

c=specific heat of the material

ΔT = change in temperature

Given

m = 4 kg

c=c

ΔT=40° C

Q=4*c*40

Q=160c

Q=160/1000*c kJ

Q=0.16*c kJ