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Why you need to prevent the Mercury of thermometer from falling back with the constriction?
Preventing the mercury from falling back with the constriction in a thermometer ensures that the temperature reading remains accurate. If the mercury were to fall back into the bulb, the recorded temperature would be lower than the actual temperature, leading to measurement errors. The constriction acts as a barrier to prevent the mercury from moving back so that an accurate reading can be obtained.
What is the diffrerence between digital thermometer and mercury thermometer?
A digital thermometer uses electronic sensors to measure temperature and displays the reading digitally, while a mercury thermometer uses a column of mercury to measure temperature and has a calibrated scale to indicate the temperature. Digital thermometers are often faster and more accurate than mercury thermometers, and are also safer since they do not contain mercury.
Why is the clinical thermometer shorter than the mercury thermometer?
Mercury expand more easily.so it need large space
Mention any two points of difference between a clinical thermometer and an ordinary mercury thermometer?
A clinical thermometer will offer more precise calibrated readings than a mercury thermometer. The range of measurable temperature differs between a clinical and a mercury thermometer with the mercury thermometer having the wider range.
How accurate is a thermometer?
A thermometer can be accurate if used correctly and calibrated regularly. However, factors such as environmental conditions and handling can affect its accuracy. Digital thermometers tend to be more accurate than traditional mercury thermometers.
Which thermometr will you take when you go to south expedition mercury or alchol?
An Alcohol thermometer would be the best as it is more sensitive than the mercury thermometer.
Why is digital thermometer is better than mercury thermometer?
Digital thermometers are preferred over mercury thermometers because they are more accurate, faster, and safer to use. Digital thermometers provide a digital reading, eliminating the risk of parallax error associated with reading a mercury level. Additionally, digital thermometers do not contain mercury, making them safer for the environment and in case of accidental breakage.
Why is mercury thermometer not suitable to measure the temperature of very cold regions?
Mercury freezes at around -39°C, so it cannot be used to measure temperatures below that point. In very cold regions where temperatures can drop significantly lower than this, mercury thermometers would not be accurate or reliable. Furthermore, mercury is also toxic, posing health and environmental risks if the thermometer were to break in such harsh conditions.
Why Mercury thermometer is used domestically and alcoholic thermometer in lab?
Mercury thermometers are used domestically because they are reliable, have a wide temperature range, and are easy to read. Alcoholic thermometers are used in labs because they are non-toxic and can measure a wide range of temperatures accurately. Additionally, they have a lower risk of shattering compared to mercury thermometers.
How cold would it have to be in order to freeze a mercury thermometer?
Mercury freezes at -38.83°C (-37.89°F). In order to freeze a mercury thermometer, the temperature would have to be lower than this point. However, prolonged exposure to temperatures below freezing may damage the thermometer.
Why does the mercury in the thermometer not spill even by moving it?
If the question relates to the tendency of the mercury to stay clumped together rather than separate inside the thermometer, it's due to the high surface tension of that element. Mercury can separate inside the thermometer, but its unusual for it to do that for the stated reason.
Why is mercury preferably used in a thermometer when compared to alchol?
Mercury has a higher coefficient of expansion than alcohol, allowing for a more sensitive temperature reading. It also remains a liquid at a larger range of temperatures, making it suitable for measuring both high and low temperatures accurately. Additionally, mercury does not wet its container, ensuring a clear and consistent meniscus in the thermometer.
