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Is it a physical or chemical change when the liquid mercury in a thermometer expands as it is heated?
physical change
What else can I help you with?
Is mercury expanding in a thermometer a chemical or physical change?
Physical. The mercury doesn't change.
Why does mercury level goes down for a very short time when a mercury-in glass thermometer is placed in hot water?
The exterior of the bulb of the thermometer expands first, resulting in the mercury level to go down. After that the mercury in the bulb expands more than the glass bulb, resulting in the subsequent rise of the mercury level.
What is the purpose of Mercury in a Thermometer?
Mercury in a thermometer is used because it has a high coefficient of expansion, meaning it expands and contracts in response to temperature changes. This property allows for accurate measurement of temperature as the mercury level rises and falls inside the thermometer. Additionally, mercury has a wide temperature range in which it remains a liquid, making it suitable for measuring a broad range of temperatures.
What is red substance in thermometer?
The red substance in a thermometer is typically mercury. Mercury is used in thermometers because it expands and contracts uniformly with changes in temperature, making it an effective liquid for measuring temperature accurately.
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.
Is mercury expanding in a thermometer a chemical or physical change?
Physical. The mercury doesn't change.
What is the liquid mercury in a thermometer expands as its heated what is this a?
physical change
Is alcohol expanding in thermometer on a hot day a physical or a chemical change?
1 physical 2 ITS MERCURY THAT IS IN A THERMOMETER
Why does the mercury in the thermometer go up when the temperature is high?
In a mercury thermometer, the mercury expands when it is heated, causing it to rise in the thermometer's narrow tube. This increase in volume is a physical property of mercury known as thermal expansion. The height of the mercury column in the thermometer is then used to measure the temperature.
What are examples of thermal expansion and contraction?
the Mercury in a thermometer expands when heated and contracts when the temperature cools down.
What is the working of the thermometer?
capillarity rise.heating expands mercury whereas cooling contracts mercury
Does a thermometer's mercurry expand contract on condenses?
it expands and contracts when the temperature drops, the mercury contracts...when the temperature increases, the mercury expands
Why does Mercury in the the thermometer rise?
Mercury rises in a thermometer when the temperature increases because mercury expands as it heats up. This expansion of the mercury column inside the thermometer is used to measure the temperature of the surrounding environment.
What happens to the mercury in a thermometer Why?
The mercury in a thermometer expands and contracts as temperature changes. This expansion and contraction causes the level of mercury in the thermometer to rise or fall, providing a visual indication of the temperature.
What is the process by which a thermometer works?
There is mercury the thermometer. (well, some thermometers..) when mercury gets hot it expands because mercury is a metal. I'm pretty sure.
How does mercury work in a thermometer to measure temperature accurately?
Mercury in a thermometer expands and contracts with changes in temperature. As the temperature rises, the mercury expands and rises in the tube, and as the temperature falls, the mercury contracts and lowers in the tube. This movement is then converted into a temperature reading on the scale of the thermometer, allowing for accurate temperature measurement.
If the substance is warmer then the Mercury in the thermometer the Mercury will?
If Mercury (element) is heated then like every other substance it expands.
