Question

why is mercury used in thermometer?​

Answer 1

Answer:

Mercury is the only one in liquid state at room temperature. It's used in thermometers because it has high coefficient of expansion.

Explanation:

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.

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Answer 2

• Most metals are good heat and electrical conductors, and they are solid at room temperature, as we all know.
• At ambient temperature, mercury is the only metal that can be liquid.
• It's utilized in thermometers because it has a high coefficient of expansion, making it simple to move around in them when temperatures change.
• Because mercury has a high boiling point, it may be used to determine greater temperatures.

• A mercury thermometer consists of a glass tube filled with mercury that is labelled with a standard temperature scale.
• Changes in temperature cause the mercury to expand and compress. Laboratory investigations, residential uses, and industrial applications all employ mercury thermometers.