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Give four reasons for using mercury in a thermometer.

Asked by Topperlearning User 14th May 2015, 12:53 PM
Answered by Expert
Answer:

Mercury is used as a thermometric liquid because:

 

  1. It has a lower freezing point (-39°C) and a high boiling point (35°C). Hence it can be used over a wide range of temperature.
  2. It is shiny liquid metal, hence can be easily seen through the glass of the thermometer tube.
  3. It has a fairly large expansion for a small change in temperature. 
  4. It does not stick to the glass tube.

 

Answered by Expert 14th May 2015, 2:53 PM
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