How much heat must be added to a 8.0 kg block of ice at to change it to water at

PHYSICS · Single correct · CBSE · Physics · Thermal Properties of Matter · Thermal Properties of Matter

Problem

How much heat must be added to a 8.0 kg block of ice at

-8^{\circ}\text{C}

to change it to water at

14^{\circ}\text{C}

. The specific heat of ice is

2050 \text{ J/kg} \cdot ^{\circ}\text{C}

, the specific heat of water is

4186 \text{ J/kg} \cdot ^{\circ}\text{C}

, the latent heat of fusion of ice is 334,000 J/kg, and

1 \text{ cal} = 4.186 \text{ J}

. (a) 780 kcal (b) 140 kcal (c) 180 kcal (d) 810 kcal