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When mercury in a glass thermometer is used to measure the temperature of hot water, it is observed that the mercury level first drops before beginning...

      

When mercury in a glass thermometer is used to measure the temperature of hot water, it is observed
that the mercury level first drops before beginning to rise. Explain.

  

Answers


Davis
-When inserted in hot water, the glass casing in which the mercury is contained expands, creates a vacant which the column drops to occupy.
-As heating continues, the mercury starts rising indicating the temperature reading.

Githiari answered the question on September 16, 2017 at 08:41


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