Question

why is mercury used in thermometer??​

Answer 1

Mercury is the only one in liquid state at room temperature. It's used in thermometers because it has high coefficient of expansion

Answer 2

Hey

Here is your answer :-

Mercury is used in thermometer because-

1) It's response to heat is faster than any other metal.

2) It is the only metal present in liquid state.

3) Easy to record because of thick and shiny metal.

4) Non sticky to the glass wall so capillary always remains clean.

Hope it helps ✌✌