we know that ice melts at 0 ⁰C. in the graph, at position B, the temperature is constant, which indicates that phase change is taking place there. at B , from the graph , we also notice that the temperature is constant at value 0 ⁰C. this indicates that ice at 0 ⁰C is converting to water at 0 ⁰C there at position B in the graph.
The graph shows the variation of heat absorbed with temperature. The process takes place in five steps.
Water exists in three forms:
Solid
Liquid
Gas
Section B shows the melting of water. When the solid ice converts into a liquid state the process is called melting. Here, the temperature is constant. The melting point of ice is . It shows that the ice is converting to water (at ).
