Question

Why do we use Mercury in the
thermometer? Can water be used instead
of Mercury? What are the problems in
using it?
​

Answer 1

We use mercury in thermometers because most metals are good conductor of heat and mercury is the only metal in liquid state. ... No,we cannot use water instead of mercury because water do not expand as per temperature given to it and can give us wrong reading.

mark me brainlist

Answer 2

Answer:

because it has high coefficient of expansion. no water cannot use instead of Mercury. the problems are the mercury will give exact value