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When the temperature increases the level of mercury in the thermometre rises why does this occur?
Wiki User
∙ 15y ago
When the temperature rises the Mercury ions have more energy. That means they move around faster. Because they are moving faster they are further apart from each other on average, therefore the metal expands in volume. Because of the shape of the inside of a thermometer the mercury can only rise upwards even though it expands in all directions.
Wiki User
∙ 14y ago
Wiki User
∙ 11y agoLike all other metals mercury also expand with rise in temperature.The design of thermometer makes it visible. As you can see there is mercury bulb at one end(witch we put in mouth or arm pit. )witch taper down into capillary tube in the length of thermometer so slight expansion in mercury in the bulb appears to amplify manifold and triangular design and color of mercury makes it visible against colored on one side of thermometer. Also glass on the mercury bulb is thin so that external heat should pass to mercury in short time.
Wiki User
∙ 14y agoMercury (as many other liquids and solids) expands when heated and contracts when cooled. The volume of the (glass) bulb with the majority of the mercury hardly expands at all and so most of the expansion is translated into visible motion of the level of mercury in the (very fine) tube that you look at when you read the temperature.
The primary reason for material to expand when heated is (simply) that the increased vibration of the constituent atoms and molecules requires more room.
Wiki User
∙ 12y agoThe rise in temperature causes the mercury atoms to collide with one another more often, and with more forceful impacts. This increased activity causes an increase in the volume of the mercury. With no where else to go, the column of mercury rises higher in the thermometer.
Wiki User
∙ 15y agoBecause it expands with temperature and can no longer fit in the little bulb at the bottom of the thermometer.
Wiki User
∙ 11y agoIt rise because mercury is very sensitive and it is a good thermometric substance
Wiki User
∙ 9y agoThe mercury in the sealed vacuum of the thermometer glass tube expands on heating, so must rise up the tube, and sink down when cooled.
Wiki User
∙ 13y agoair pressure above water pulls it up
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In which temperature zones does the atmospheric temperature increase as the distance above sea level increases?
The temperature zones in which the atmospheric temperature increases as the distance above sea level increases are the stratosphere and the thermosphere.
Do sound waves increase or decrease above sea level?
The sound has really nothing to do with sea level, but changes with temperature alone. The speed of sound goes up when the temperature goes up and goes down when the temperature goes down. The frequency of sound columns, like of woodwinds or of church organs changes with temperature. If the temperature increases, the frequency increases also.
How is temperature related to the solubility of a solid solute Why?
At the molecular level, temperature is inversely proportional to solubility. As the temperature of a liquid increases, the solubility of gases in that liquid decreases.
Why is the temperature of hot water taken when the mercury stop expanding?
When the mercury stops rising in a thermometer, the level reached is read off a scale etched on the glass tube. This shows the temperature of the hot water. There is little point in reading the scale until it stops moving.
In the process of electricity what flows through the wires?
Its temperature increases. It continues to radiate a spectrum of light ("black body") representative of its new higher temperature. At some level of current, we see it as a source of visible light.
What happens to the mercury level when the cold thermometer is kept in a hot tub of water?
The answer is: when it is kept so the mercury level in the tube increases showing the temperature
Does humidity increase when temperature increases?
No, it only increases when the water level increases; it is not a matter of temperature.
In which temperature zones does the atmospheric temperature increase as the distance above sea level increases?
The temperature zones in which the atmospheric temperature increases as the distance above sea level increases are the stratosphere and the thermosphere.
When temperature increases what happens?
The level of thermodynamic energy increases.
How does Mercury within a thermometer change?
The temperature in a Mercury-based thermometer is read by the level of Mercury found in the thermometer. As Mercury heats up, it expands, therefore raising the level of the Mercury of which we see as a higher temperature. On the other end, as the temperature falls, the Mercury contracts and reads at a lower temperature.
Why does the liquid in a thermometer move?
It doesn't 'move' exactly, it expands. Originally mercury (a metal in a liquid state at room temperature) was used in thermometers; as the the temperature increases the mercury (or other liquid) expands, taking up more of the volume within the thermometer, causing the level to rise. Thermometers are calibrated to allow the temperature to be measured based on how much expansion has taken place.
How do you meshor thormomitors?
Thermometers are measured in Fahrenheit or Celsius. To measure the temperature, you will need to observe the rise and fall of the mercury. The level at where the mercury rises to is the degree of temperature.
What is the mercury of the thermometer?
The Mercury expands with temperature. Since expansion is linear over the normal range of a Mercury-driven thermometer, the level of mercury within a little glass tube indicates the current temperature of the thermometer's immediate environment.
What is the function of thermometer mercury?
The Mercury expands with temperature. Since expansion is linear over the normal range of a mercury-driven thermometer, the level of mercury within a little glass tube indicates the current temperature of the thermometer's immediate environment.
What is the pH level in soft water?
To define pH you need to define the temperature you are talking about - at higher temperature, pH increases.
What happens to the mercury in the thermometer when the air is cool?
In a mercury thermometer, the level of mercury falls as the temperature of the air around it cools.A mercury thermometer has a bulb of mercury at the bottom and a thin tube above it with markings in Celsius degrees or Fahrenheit degrees. When the temperature warms, the mercury expands and rises up the tube. When the temperature cools, the mercury contracts and shrinks back toward the bulb at the bottom.
Why potential temperature increases with height?
No, if you are referring to height above sea level, then it is the opposite way around. Approximately, for every 100m above sea level you go, the temperature drops around 0.7-1 degree celcius.
