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The temperature in a Mercury-based thermometer is read by the level of Mercury found in the thermometer. As Mercury heats up, it expands, therefore raising the level of the Mercury of which we see as a higher temperature. On the other end, as the temperature falls, the Mercury contracts and reads at a lower temperature.

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What is the mercury called on a clinical thermometer?

The liquid in a clinical thermometer is called mercury. It is used to measure body temperature by expanding and rising within the thermometer.


What is the mercury of the thermometer?

The Mercury expands with temperature. Since expansion is linear over the normal range of a Mercury-driven thermometer, the level of mercury within a little glass tube indicates the current temperature of the thermometer's immediate environment.


Is mercury expanding in a thermometer a chemical or physical change?

Physical. The mercury doesn't change.


Why Mercury does not touch the walls thermometer?

Mercury does not touch the walls of a thermometer because it expands when heated, filling the space within the thermometer tube without coming into contact with the walls. This expansion is what allows mercury to accurately measure changes in temperature by rising and falling within the tube.


What is the liquid mercury in a thermometer expands as its heated what is this a?

physical change


What color is the Mercury in a Mercury thermometer?

Mercury in a Mercury thermometer is typically silver in color.


Is alcohol expanding in thermometer on a hot day a physical or a chemical change?

1 physical 2 ITS MERCURY THAT IS IN A THERMOMETER


What makes mercury in a thermometer go up and down?

Change in temperature is what cause the Mercury to expand up (hotter) or shrink down (colder).


What is the function of thermometer mercury?

The Mercury expands with temperature. Since expansion is linear over the normal range of a mercury-driven thermometer, the level of mercury within a little glass tube indicates the current temperature of the thermometer's immediate environment.


What is the construction of mercury thermometer?

A typical mercury thermometer consists of a glass tube with a bulb at one end filled with mercury. As the temperature changes, the mercury expands or contracts, causing it to rise or fall in the tube. The temperature is then read based on the level of the mercury within the graduated scale on the tube.


What is the function of the constriction on a thermometer?

The constriction on a thermometer helps to trap the liquid (typically mercury or alcohol) within the bulb when the thermometer is tilted or turned upside down. This ensures that the thermometer gives accurate readings by keeping the liquid contained within the measuring portion of the instrument.


Is the external bulb of a thermometer also made of mercury?

No, the external bulb of a thermometer is typically made of glass to hold the mercury inside. Mercury is usually contained within the glass bulb to measure temperature accurately without exposing the user to the toxic substance.