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physical change
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What happens to the liquid in a thermometer when it is heated?
it expands
What happens to a liquid in a thermometer when it is heated?
it expands
What happens to the liquid in the thermometer when it is heated?
it expands
What happen to the liquid in the thermometer when it is heated?
it expands
Why does the liquid expand in a thermometer when it gets hotter?
The liquid in a thermometer expands when it gets hotter because heat causes the molecules in the liquid to move faster and spread out, leading to an increase in volume. This expansion is what causes the liquid to rise up the tube of the thermometer, indicating a higher temperature.
How does a liquid thermometer measure temperature?
The alcohol or mercury in a thermometer expands or contracts very precisely according to heat or cold.
What is the thermometric property used in a mercury thermometer?
Not just a property of liquid but of all matter. All matter expands when heated and contracts when cooled, in thermometers the liquid, usually an alcohol, expands when heated lengthening the little line.
Why is the water not used in the construction of liquid in glass thermometer?
Water expands unevenly when heated and can freeze at low temperatures, affecting the accuracy of the thermometer. Mercury, which is used in liquid-in-glass thermometers, expands evenly with temperature changes and remains liquid at a wide range of temperatures, making it ideal for measuring temperature accurately.
What liquid expands when heated?
All liquids expand when heated. e.g. Mercury in a thermometer. One exception may be water when heated form 0 to 4 degrees Celsius.
Why is mercury used in a thermometer?
Mercury is used in thermometers because it is a good conductor of heat and expands uniformly when heated, making it easy to measure temperature accurately. Additionally, mercury remains a liquid at a wide range of temperatures, allowing it to be easily contained within the thermometer.
Why does the liquid level rise in a theremometer when the temperature is higher?
When the liquid is heated (by the environment), the particles in the liquid have more energy, and start moving around more, which causes the liquid to expand and take up more room. Conversely, in cold temperatures, the particles do not have as much energy, and do not move as much, so the liquid contracts.
What is liquid rising in a thermometer as temperature increases is an example of?
This is an example of thermal expansion, where the liquid in the thermometer expands as it is heated, causing it to rise within the tube.
