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Sagot :
Answer:
When heated, the molecules of the liquid in the thermometer move faster, causing them to get a little further apart. This results in movement up the thermometer. When cooled, the molecules of the liquid in the thermometer move slower, causing them to get a little closer together.
Explanation:
I hope it can help
An increase in temperature indicates the molecules in the liquid are moving faster and the temperature is rising in the thermometer.
What are the uses of mercury Thermometer ?
Mercury thermometer are useful in measuring body , liquid and vapor temperature.
Mercury is used in the thermometer , The movement of the liquid in a thermometer shows changes in temperature.
The volume expansion coefficient of Mercury is very high and so by 1 degree rise in temperature there is 0.018 % increase in volume.
An increase in temperature indicates the molecules in the liquid are moving faster and the temperature is rising in the thermometer.
To know more about Mercury Thermometer
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