(Answered) 1explain why a beaker filled with water at 4 degree celcius

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(1)Explain why a beaker filled with water at 4 degree celcius overflows if the temperature is decreased or increased

(2)Mercury boils at a temperature of 357Degree Celcius. How then can mercury thermometers be used to measure temperatures up to 500 Deg Celcius ?

(3)Two thermometers are constructed in the same way except that one has a spherical bulb and the other has a cylindrical bulb. whic one will respond quickly to temperature changes?

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