Question

Why mercury is used as a thermometric liquid ( latent heat of fusion)?

Answer 1

Most metals are good conductors of heat and they are solids at room temperature. Mercury is the only one in liquid state at room temperature. It's used in thermometers because it has high coefficient of expansion. Hence, the slightest change in temperature is notable when it's used in a thermometer.

Answer 2

Answer:Mercury is used in thermometer because it is liquid metal at room temperature and it doesn't stick with the glass.