A 40.0-g block of ice at is dropped into a calorimeter (of negligible heat capacity)…

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

Problem

A 40.0-g block of ice at

-15.00^{\circ}\text{C}

is dropped into a calorimeter (of negligible heat capacity) containing water at

15.00^{\circ}\text{C}

. When equilibrium is reached, the final temperature is

8.00^{\circ}\text{C}

. How much water did the calorimeter contain initially? The specific heat of ice is

2090 \text{ J/kg} \cdot \text{K}

, that of water is

4186 \text{ J/kg} \cdot \text{K}

, and the latent heat of fusion of water is

33.5 \times 10^4 \text{ J/kg}

. (a) 302 g (b) 345 g (c) 405 g (d) 546 g