Question

In winters when the lakes start freezing, the weather becomes very pleasant in the surrounding region. Explain.

Answer 1

In winters when the lakes start freezing, the weather becomes very pleasant in the surrounding region:

1. Ice has the highest specific latent heat of fusion of $336000Jk{g}^{-1}$
2. Specific latent heat of fusion is defined as the quantity of heat required to convert a unit mass of the substance from solid to liquid state at its melting point.
3. Thus every $1kg$ of water at $0^{0}C$ on freezing releases $336000J$ of heat energy.
4. As high amount of heat energy is released in atmosphere therefore in winters when the lakes start freezing, the weather becomes very pleasant in the surrounding region.