To treat a burn on your hand, you decide to place an ice cube on the burned skin. The mass of the ice cube is 13.2 g, and its initial temperature is -11.9 °C. The water resulting from the melted ice reaches the temperature of your skin, 30.0 °C. How much heat is absorbed by the ice cube and resulting water? Assume that all the water remains in your hand

1 answer

Q=Q₁+Q₂+Q₃ = c₁mΔT₁+ λm + c₂mΔT₂=
= m(c₁ΔT₁ + λ+c₂ΔT)=
=0.0132(2060•11.9+ 335000+4183•30)=
=0.0132(24514+335000+125490)=
=6402 J