Boiling water is changing into steam. Under this condition,the specific heat of water is

$A$ block of ice at $-10^{\circ}C$ is slowly heated and converted to steam at $100^{\circ}C$. Which of the following curves represents the phenomenon qualitatively?

Heat is supplied to a certain homogeneous sample of matter at a uniform rate. Its temperature is plotted against time,as shown. Which of the following conclusions can be drawn?

Explain the three states of matter and the process of change in states.

$A$ 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

The portion $AB$ of the cooling curve representing the state of matter denotes: