mercury freezes at -39 and alcohol can be used under weather.
Alcohol is a safer choice for a thermometer liquid as it is not as toxic as mercury, making it safer for both human health and the environment. Mercury can be harmful if it leaks or is accidentally ingested, whereas alcohol is less harmful if exposed.
A clinical thermometer is designed for measuring human body temperature with high accuracy and precision, typically ranging from 35°C to 42°C. An alcohol thermometer, on the other hand, measures a wider range of temperatures and is commonly used for household and industrial purposes due to its versatility and affordability. Additionally, alcohol thermometers use colored alcohol, like ethanol or isopropanol, rather than mercury for safety reasons.
Some pool thermometers do contain mercury, but there are alternatives available that use different substances like alcohol or digital sensors. If you are concerned about the presence of mercury in a pool thermometer, look for options that explicitly state they are mercury-free.
Brandy works in a thermometer by expanding and contracting with changes in temperature. As the temperature increases, the brandy expands and rises in the thermometer tube. Conversely, as the temperature decreases, the brandy contracts and lowers in the thermometer tube, allowing for temperature readings.
No, a thermometer doesn't physically go up. Rather, it measures and displays changes in temperature by using a scale or dial to indicate the temperature.
because it would turn to ice and alcohol wouldn't
Alcohol is a safer choice for a thermometer liquid as it is not as toxic as mercury, making it safer for both human health and the environment. Mercury can be harmful if it leaks or is accidentally ingested, whereas alcohol is less harmful if exposed.
because it is more cheaper then the mercury one and less poisonous
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.
A clinical thermometer is designed for measuring human body temperature with high accuracy and precision, typically ranging from 35°C to 42°C. An alcohol thermometer, on the other hand, measures a wider range of temperatures and is commonly used for household and industrial purposes due to its versatility and affordability. Additionally, alcohol thermometers use colored alcohol, like ethanol or isopropanol, rather than mercury for safety reasons.
Some pool thermometers do contain mercury, but there are alternatives available that use different substances like alcohol or digital sensors. If you are concerned about the presence of mercury in a pool thermometer, look for options that explicitly state they are mercury-free.
Brandy works in a thermometer by expanding and contracting with changes in temperature. As the temperature increases, the brandy expands and rises in the thermometer tube. Conversely, as the temperature decreases, the brandy contracts and lowers in the thermometer tube, allowing for temperature readings.
The liquid in a Mercury thermometer is ... Mercury. Mercury is an element which is liquid from -38.83 °C to 356.73 °C, making it useful for measuring temperatures for most of the environments we encounter in person. Below that range, mercury solidifies and we would have to find another liquid to use in a thermometer or find another way to measure temperature (such as a thermocouple). Above that temperature range, mercury starts to boil (unless kept under pressure) so it's not suitable for measuring high temperatures. In theory we could still use a liquid thermometer with something that is liquid at high temperatures, but it gets rather complicated and there are easier and safer ways to measure high temperatures.
Usualy these are made with alcoholl rather then mercury as mercury is expensive and can be dangerous. ----------------------------------------------------------------------------------------------------- To reduce the risk of a thermometer breaking (and for it to be used under water) Most companies go with digital thermometers, for they are very resistant to damage and they have the nuber displayed on a screen, rather than having to read a scale. cheers <3 -Eli
Rather ironically, it depends on the temperatures involved. Most thermometers use mercury. Partly, this is because the silver colour of the mercury make it easy to read, but mainly because they work over a useful range of temperatures for everyday use. However, one problem with mercury is that its melting point is -38oC; so below that temperature the thermometer would freeze - this makes it unsuitable for use in very cold environments. Alchohol thermometers (usually ethanol is used) work from around -115oC, so they are used in low temperature environments - the disadvantage with alcohol is that it vaporises at 78oC so it isn't useful in very hot environments.
The first outdoor thermometer was invented by Galileo Galilei in the early 17th century. He used a glass tube filled with a liquid, typically alcohol, that would expand and contract with temperature changes, indicating the temperature on a scale.
Thermometers can be filled with alcohol, which is a less toxic alternative to mercury. Some modern thermometers use digital sensors to measure temperature, eliminating the need for any liquid filling.