Question

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

Answer 1

Answer:

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.

Explanation:

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Answer 2

Answer:

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.

Exposure to mercury even small amounts may cause serious health problems, and is a threat to the development of the child in utero and early in life. Mercury may have toxic effects on the nervous, digestive and immune systems, and on lungs, kidneys, skin and eyes.