Question

Answer the following questions from the graph: What does AB indicate in the graph? Why there is no change in temperature for the first 5 minutes, during conversion of ice into water taking place? Does this graph indicate heating curve or a cooling curve of water? What is the melting point of H2O in solid state?

Answer 1

1. AB indicates the temperature at which the ice get converted into the liquid state which is water.

2.Due to latent heat of fusion.

3.This graph is showing heating curve.

4.Melting point of water(H20) is 273k or 0 degree.