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How far does the mercury rise in the capillary when the temperature changes from 0.0 to 25.0?
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∙ 11y ago
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Wiki User
∙ 11y ago
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What is the definition of Glass thermometer?
thermometer consisting of mercury contained in a bulb at the bottom of a graduated sealed glass capillary tube marked in degrees Celsius or Fahrenheit; mercury expands with a rise in temperature causing a thin thread of mercury to rise in the tube
Why is water rise in capillary tube wheras mercury falls in capillary tube?
i dont know ha ha ha
Why does mercury fall downwards and water rise upwards when placed in a capillary tube?
Mercury is more dense than water.
What are the constrictions in a thermometer?
The constriction in a thermometer is a narrow region in the capillary tube where the liquid (like mercury or alcohol) is forced to flow through. This helps to amplify the rise or fall in temperature, making it easier to read.
Why is mercury is preferred in ordinary thermometers?
To measure the temperature calibrated in the thermometer. Mercury as a liquid reacts well to temperature changes. It expands as it gets warmer, so thermometers measure the rise of the mercury to measure temperature.
How do you test the temperature of the air?
Get a thermometer - the mercury will rise or fall accordingly to the temperature of the air.
How hot can mercury get to?
Mercury can rise to any temperature. It evaporates at 674.1°F (356.7°C).
Can Mercury get to hot?
Mercury can rise to any temperature. It evaporates at 674.1°F (356.7°C).
Capillary rise and fall applications in nature?
capillary fall
How the liquid in a thermometer changes so that it can be sued to measure temperatures?
The thermometer is a sealed glass tube containing mercury in a vacuum. The mercury column will rise or fall due to expansion, and the level is read off a temperature scale.
When solid changes to liquid rise in temperature or drop in temperature?
Melting need an increase of the temperature.
Why there is kink in clinical thermometer?
In a normal clinical thermometer, the mercury moves up and down the capillary tube as the temperature changes and thus if you removed it from contact with the patient the reading would steadily fall as it cooed. As you need a clinical thermometer to give you a reading of the patients temperature even after it has been removed from the patient, you need to stop the mercury shrinking back into the reservoir. The 'kink' breaks the connection between the mercury in the capillary tube and the reservoir so the reading given is accurate. On the other hand before it can be used again the mercury in the capillary tube has to be vigorously shaken back into the reservoir.On a point of interest, clinical thermometers are getting very rare because they have been phased out due to concerns regarding mercury poisoning should they break in use.
