answer in brief. why are liquid used in a thermometer?
Answers
Explanation:
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.
Answer:
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.
- In a mercury thermometer, a glass tube is filled with mercury and a standard temperature scale is marked on the tube.
With changes in temperature, the mercury expands and contracts, and the temperature can be read from the scale.
Mercury thermometers can be used to determine body, liquid, and vapor temperature.
Answer:
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.
- In a mercury thermometer, a glass tube is filled with mercury and a standard temperature scale is marked on the tube.
With changes in temperature, the mercury expands and contracts, and the temperature can be read from the scale.
Mercury thermometers can be used to determine body, liquid, and vapor temperature.