1.

Why is mercury used in the thermometer?

Answer»

Mercury is used in thermometer for the following reasons :

  1. It does not stick to the walls of the tube.
  2. It has high coefficient of expansion, hence the slightest change in temperature is notable.
  3. It has a shiny surface, so it is easily visible.
  4. It has high boiling point which makes it suitable to measure high temperature.


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