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because the mixture of ice and water has an equilibrium temperature of 0 C and thus it will be the first calibration system and making sure that thermometer is working properly. The thermometer will have better contact with the water than with lumps of ice and therefore adjust better to its temperature.

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15y ago
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11y ago

In theory water can be used, but it expands to a gas and would burst the thermometer above 100 0 C. Similarly, when water freezes at 0 0C it expands unlike other materials and would also break the thermometer. The useful range of the water thermometer would thus be limited.

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14y ago

if you put water in a thermometer and it gets hot the water expands and might and burst and when it gets to cold it freezes

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12y ago

Mercury is a good conductor of heat and it expands to certain levels when heated to certain temperatures.

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Q: Why is water not used as a liquid in a thermometer?
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