Question

Describe the construction of a glass thermometer containing mercury. Also, state why mercury is chosen as the thermometric liquid.​

Answer 1

Answer:

Mercury is best suited as a thermometric liquid:

It has low specific heat capacity. 3. I has a high boiling point (357 °C) and a low freezing point (-39 °C).

Answer 2

Answer:

It is made up of long fine capillary tube of uniform bore and bulb . It is filled with mercury. the bulb is made relatively larger than its bore to contain more liquid so as to improve sensitivity. The round glass stem around the capillary tube is made thick.

Mercury is the only one in liquid state at room temperature. It's used in thermometers because it has high coefficient of expansion. Hence, the slightest change in temperature is notable when it's used in a thermometer. It also has a high boiling point which makes it very suitable to measure higher temperatures.

Explanation:

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