Which row explains how increasing the temperature of a liquid and increasing its surface area speed up the rate of evaporation?
| Increasing the temperature | Increasing the surface area | |
|---|---|---|
| A | Increases the average kinetic energy of the molecules | Increases the total number of molecules present in the liquid |
| B | Increases the average kinetic energy of the molecules | Increases the number of molecules close to the surface of the liquid |
| C | Increases the attractive forces between the molecules | Increases the total number of molecules present in the liquid |
| D | Increases the attractive forces between the molecules | Increases the number of molecules close to the surface of the liquid |
A
B
C
D
313 exam-style questions on CIE IGCSE Physics 2.2.3a Melting, boiling, condensation and solidification. Each one has a worked solution and a mark scheme showing where the marks go.