Question

I.Name two commonly used thermometric liquids.

Answer 1

Answer:

mercury and alcohol

ii) used to test temperatures

Answer 2

1. Mercury and Alcohol
2. Mercury:

i) It is a good conductor of heat and therefore the whole liquid reaches the temperature of the surroundings quickly.

ii) It does not wet (cling to the sides of) the tube.

Alcohol:

i) Alcohol has greater value of temperature coefficient of expansion than mercury.

ii) it's freezing point is below –100°C.