Question

<!--td {border: 1px solid #cccccc;}br {mso-data-placement:same-cell;}--> Define boiling.

Answer 1

<!--td {border: 1px solid #cccccc;}br {mso-data-placement:same-cell;}--> Boiling is the rapid vaporisation of a liquid, which occurs when a liquid is heated to its boiling point. A liquid is changed into gas on boiling. [1 mark]