Explain three states and change in states for matter.
What are vapourization and boiling point ? Explain the process of boiling of water.
The saturation vapour pressure of water at $100°C$ is ........ $mm$ of mercury
A solid cube having certain fixed melting and boiling points takes heat from some source.The variation of temperature $\theta$ of the cube with the heat supplied $Q$ is shown in the adjoining graph. The portion $BC$ of the graph represents the conversion of
A solid material is supplied with heat at a constant rate. The temperature of material is changing with heat input as shown in the figure. What does slope $DE$ represent.