Mercury is often used in clinical thermometers. Which one of the following properties of mercury is not a reason for this ?

Question

Mercury is often used in clinical thermometers. Which one of the following properties of mercury is not a reason for this ? (A) The coefficient of the thermal expansion is large (B) It is shiny (C) It is a liquid at room temperature (D) It has high density

Tardigrade Admin · Accepted Answer

Fluid used in a thermometer must be easily visible, expands uniformly and significantly and it must be a liquid at room temperature. So, density of mercury is not a feature for selecting mercury in clinical thermometers.

Q. Mercury is often used in clinical thermometers. Which one of the following properties of mercury is not a reason for this ?

The coefficient of the thermal expansion is large

It is shiny

It is a liquid at room temperature

It has high density

Fluid used in a thermometer must be easily visible, expands uniformly and significantly and it must be a liquid at room temperature. So, density of mercury is not a feature for selecting mercury in clinical thermometers.