Question

The specific latent heat of ice is 383J/g
A. True
B. False

Answer 1

Hint: The specific heat of ice is 2.04kJ/kg/K and the latent heat of fusion is 335kJ/kg.

Complete step by step solution:
The term Specific latent heat is the amount of that energy required to change the state of 1 kilogram (kg) of a material, without changing its temperature. The term latent heat of vaporization is that amount of energy needed to boil or condense the material at its boiling point.
The term, Specific latent heat of fusion of a substance is defined as the amount of that heat required to change a unit mass of the substance from solid to liquid state, without any change in the temperature.
Energy is required to melt a solid because the cohesive bonds between the molecules in the solid must be broken apart so that the molecules can move around at comparable kinetic energies. Thus, there is no rise in temperature.
The term Latent heat is also known as the latent energy or heat of transformation is energy released or absorbed, by a body or a thermodynamic system, during a constant-temperature process generally a first-order phase transition.
The heat required to convert 1 g of ice from 0°C to 1 g water at 0°C is 336J. It means 1 g of ice at $0^\circ$C absorbs 360J of heat energy to convert into water at $0^\circ$C.
So the statement is false.

So, the correct answer is “Option A”.

Note: A 334 J of energy is essential to melt the 1 g of ice at 0°C, which is called the latent heat of melting.
At 0°C, liquid water has 334 J/g , energy than ice at the same temperature. The energy is released when the liquid water by and by freezes, and it is called the latent heat of fusion.