Question

Dos
x
why do we use mercary
in the thermometer
can water be used instead of mercury? what
are the problem in using it.​

Answer 1

Below 0oC and above 100oC can't measure by using the water. The most metals are solids at room temperature but the mercury is liquid form because it has high coefficient of expansion. The mercury does not sticking to capillary wall of thermometer can easily measure temperature accurately