An ice cube at temperature $-20^o C$ is kept in a room at temperature $20^o C$. The variation of temperature of the body with time is given by
Explain the process of change in state of matter by heating or cooling it.
Why the cooking is faster in pressure cooker ?
What are freezing and freezing point ?
The variation of density of water with temperature is represented by the
The portion $AB$ of the indicator diagram representing the state of matter denotes