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
Solid into vapour
Solid into liquid
Liquid into vapour
Vapour into liquid
The graph signifies
The temperature at which the vapour pressure of a liquid becomes equals to the external (atmospheric) pressure is its
What is latent heat ? Explain with example.
A block of ice at $-12^{\circ} C$ is slowly heated and converted into steam at $100^{\circ} C$. Which of the following curves best represents the event?
What is isolated system ?