Question

Mercury is a poor conductor of heat,then why is it used in thermometers?

Answer 1

Most metals are good conductors of heat and they are solids at roomtemperature. Mercury is the only one in liquid state at room temperature. It'sused in thermometers because it has high coefficient of expansion. ... It also has a high boiling point which makes it very suitable to measure higher temperatures. Please mark it as brainlist.