Define heat in terms of K.E. Give its SI unit.
The total sum of kinetic energy contained by the molecules of the body is called the heat energy of that body.
Its SI unit is Joule.
Write down the freezing point and boiling point of alcohol and mercury.
The freezing and boiling point of alcohon and mercury are:
Mercury ---> FP: - 39°C
BP: 357°C
Alcohol ---> FP: - 115°C
BP: 78°C