Refer to the plot of temperature versus time figure showing the changes in the state of ice on heating (not to scale). Which of the following is correct ?

Refer to the plot of temperature versus time figure showing the change

1.	Refer to the plot of temperature versus time figure showing the changes in the state of ice on heating (not to scale). Which of the following is correct ?
Answer» The region AB represents ice and WATER in THERMAL equilibrium. At B water starts boiling. At C all the water gets converted into steam C to D represents water and steam in equilibrium at boiling POINT. Solution :Temperature of system during AB is `0^(@)C`. Hence, it changes its state from ice to water and temperature remains constant at `0^(@)C`. Temperature of water becomes `0^(@)C` to `100^(@)C` [it is REPRESENTED by to C, BC] Now, Cd part shows the equilibrium of water and steam.