what are the liquids used in thermometer which shows temperature
Answers
mercury
picture nhi
plants bhi nhi
metal hai vo wala mercury
Answer:
Ethanol-filled thermometers are used in preference to mercury for meteorological measurements of minimum temperatures and can be used down to −70 °C (−94 °F). The physical limitation of the ability of a thermometer to measure low temperature is the freezing point of the liquid used.
It is because the liquids like mercury and alcohol expand uniformly on increasing temperature and also contracts uniformly on decreasing the temperature. So, it gives us the accurate measure of the temperature. That's why liquids are used in the thermometer not solids or gases.
It's never safe to touch mercury. ... In its liquid metal form, mercury absorbs instantly into the skin; but it also has an extremely high vapor pressure, so an open container of mercury disperses the metal into the air.
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