Question

A block of a certain material is heated to a temperature of $500^\circ\text{C}$ and then placed on a large ice block. If $455\text{ kg}$ of ice melts, find the mass of the block. Specific heat of the material is $39\text{ J/g}^\circ\text{C}$ and heat of fusion of water is $335\text{ J/g}$.

• A. $1.455\text{ kg}$
• B. $2.5\text{ kg}$
• C. $0.67\text{ kg}$
• D. $2.67\text{ kg}$

Hint:

Always ensure your units for specific heat and latent heat match up. Here, both were given in terms of per gram ($/\text{g}$), so converting the mass of ice into grams first makes the algebraic steps straightforward and less prone to decimal placement errors.

Answer 1

The Correct Option is B