What is latent heat of fusion ? What is latent heat of vapourization ? Give its value for water.
A solid substance is at $30°C$. To this substance heat energy is supplied at a constant rate. Then temperature versus time graph is as shown in the figure. The substance is in liquid state for the portion (of the graph)
The portion $AB$ of the indicator diagram representing the state of matter denotes
If water at $0\,^oC$ kept in a container with an open mouth, is placed in a large evacuated chamber,
The saturation vapour pressure of water at $100°C$ is ........ $mm$ of mercury