Mercury nbsp- nbsp- when temperature decreases nbsp- and when temperature increases-expandsflowsremains stillcontracts

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Byju's Answer

Standard VI

Physics

Hot and Cold Objects

Mercury nbs...

Question

Mercury when temperature decreases and when temperature increases.

expands

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flows

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remains still

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contracts

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Solution

The correct options are
A expands
D contracts
Mercury is a good conductor of heat. Mercury contracts and expands when temperature decreases and increases respectively. Mercury is preferred over other liquids because being a metal the rate of heat transfer is high and thus its response to temperature change is fast.

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