Quantity of heat required to raise the temperature of the ice cube from −10oC to 0oC ⇒H=mc►ø = 0.02 × 2100 × 0 -(-10) ⇒ H = 0.02 × 2100 × (0 + 10) = 0.02 × 2100 × 10 ⇒ H = 420 J quantity of heat required to melt ice at 0oC ⇒ H = mL = 0.02 × 3.34 × 105 ⇒H=6680 j
Quantity of heat required to raise the temperature of the melted ice cube (water) from 0oC to −10oC
⇒H=mc►ø = 0.02 × 4200 × (10-0) ⇒H = 0.02 × 4200 × 10 ⇒H = 840j ;420 + 6680 + 840 = 7940 j
