Question

The amount of heat required to change $1$ gm of a substance at its melting point into liquid state without any rise in temperature is called :

• A. Latent heat of fusion
  
• B. Latent heat of vaporisation
  
• C. Steam
• D. Melting point

Answer 1

The correct option is A Latent heat of fusion

Answer is A

The latent heat of fusion is the change in enthalpy resulting from heating a given quantity of a substance to change its state from a solid to a liquid. The temperature at which this occurs is the melting point.