Describe5 marksStandard
A student placed two beakers, each containing 100 cm³ of liquid, on a hot plate and heated them for 5 minutes. The initial and final temperatures were recorded as shown in the table.
| Liquid | Initial temperature / °C | Final temperature / °C |
|---|---|---|
| Water | 20.0 | 22.0 |
| Ethanol | 20.0 | 28.0 |
Describe how the structure of water molecules and the formation of hydrogen bonds between them give water a high specific heat capacity and enable it to act as a solvent. Relate these properties to the roles of water in living organisms. You should also refer to the latent heat of vaporisation of water in your answer.