Question

Dimension for specific latent of fusion

Answer 1

Latent heat of fusion is defined as the quantity of heat in calories required to transform 1 gm of solid substance at its melting point into liquid of the same temperature.

Mathematically,

Latent heat of fusion (L) = Heat (Q) / mass (m)

Dimensional formula of Heat(Q) = M1L2T-2

Dimensional formula of mass = M1L0T0

Putting these values in above equation we get,

Dimensional Formula of Latent Heat = M0L2T-2

SI unit of Latent Heat is Joule kg-1

Note:- Dimensional formula of latent heat of fusion is same as Latent heat. Similarly SI unit of Latent heat of fusion is same as Latent Heat.