Question

1. Alcohol can record very low temperatures
2. It's expansion per degree Celsius rise in temperature is very high

Answer 1

Explanation:

1. Alcohol has a very low freezing point and as such is useful for measuring low temperatures. It has a boiling point of 78°C and freezes at –114°C. Other types of thermometers include: The liquid crystal thermometer – it contains heat-sensitive liquid crystals that change colour to indicate different temperatures.

2. Increase in length per unit of the length, per degree celsius rise in temperature is called coefficient of linear expansion.