Question

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?​

Answer 1

Q=0.16*c kJ

Step-by-step 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