heat is supplied to to kg of solid initially at -20 degree Celsius at a constant rate of 5 kJ / min. temperature is plotted as a function of time as shown in the figure that and latent heat of fusion for solid is
Answers
Answer:LATENT HEAT OF FUSION - DEFINITION
The heat absorbed when 1kg of solid converts into liquid state is called as latent heat of fusion. Ex: For water,latent heat of fusion =80cal/g
LATENT HEAT OF FUSION AND VAPORIZATION - DEFINITION
Amount of energy absorbed or released to change liquid into vapour or vapour into liquid without changing its temperature is known as Latent heat of vaporization.
Amount of energy absorbed or released to melt solid into liquid or to freeze liquid into solid without changing its temperature is known as Latent heat of fusion.
LATENT HEAT OF FUSION - DEFINITION
The amount of heat required for a solid-liquid state change is called the latent heat of fusion. Its units are J/g and cal/g.
SETUP FOR MEASUREMENT OF LATENT HEAT OF FUSION - DEFINITION
A calorimeter is filled with water. A piece of ice is taken and as it is melting, it is dried with a blotting paper and put into the calorimeter. The initial temperature of the water is observed and after all the ice has melted the temperature of the water is taken once again. The weight of the empty calorimeter and weight including water are taken as usual.
SETUP FOR MEASUREMENT OF LATENT HEAT OF VAPORIZATION - DEFINITION
concept
The experimental set up helps us to send steam with a measured temperature into a calorimeter with known mass of water. The mass of the steam condensed is equal to the increase in the mass of water in the calorimeter after the steam is sent into it.
Explanation: