Question

Why mercury is used in thermometres?

Answer 1

Hey friend here is ur answer


Mercury is the only one in liquid state at room temperature. It's used in thermometers because it has high coefficient of expansion. Hence, the slightest change in temperature is notable when it's used in a thermometer. It also has a high boiling point which makes it very suitable to measure higher temperatures.

Answer 2

Answer:

simply it is the only available metal which stay in liquid form and can easily change its volume withrespect to temperature of out side .Thats why for its efficiency in marking temperature it is used in thermometers