Question

How much heat is needed to melt $15kg$ of ice at $0^{°}C$?

Answer 1

Step 1: Given data

Mass = $15kg$

Latent heat of fusion of ice =$80kcal/kg$.

Step 2: Calculation of heat

$Q=mL$

$$\begin{gathered} Q\hspace{0.17em}=15x80 \\ =1200kcal \end{gathered}$$

Hence, $1200Kcal$is the amount of heat required.