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.

Temperature Devices +2 more

by Arun Thomas

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This pdf contains important theory based on CRITICAL TEMPERATURE ( ENGINEERING PHYSICS )

CRITICAL TEMPERATURE ( ENGINEERING PHYSICS ) +12 more

by yash kothane

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