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melting point of alcohol is 159 kelvin,that means it will solidify only at thistemperature. where as melting point of Mercury is 234 kelvin. after this temperature it does not remain liquid at all . hence can not be used to take the readingsin the same way.
Wiki User
∙ 11y ago
Wiki User
∙ 13y agoScientists can use a electrical resistance thermometer, The resistance varies as a function of heat. If the resistance gets higher as temperature gets higher the resistance is said to have a positive temperature coefficient. If the resistance decreases as temperature increases, it is said to have a negative coefficient. The resistance thermometer in its simplest form is a series circuit containing a battery, thermal resistance, ammeter, and current limiting resistor.
Wiki User
∙ 6y agoAn alcohol thermometer using ethyl alcohol (perhaps with a little of a couple of other fluids with moderate boiling points and low freezing points) can perform satisfactorily down to minus 100 degrees or even lower temperatures. Mercury thermometers are out of the question as mercury freezes at a bit less than minus 40, and arctic temperatures drop well below that.
Wiki User
∙ 13y agoThe resistance of some materials is directly proportional to the temperature. For very low temperatures resistance thermometers are used (the change in electrical conductivity)
Wiki User
∙ 11y agoThe Units you would use to measure very low temperatures are typically Kelvins.
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Most medical electronic thermometers are not calibrated to measure ambient temperatures.
Why do you use thermometers?
GeekIsLuv says: To find the temperature of a person, inanimate object, or room. There's a myriad of reasons to measure the temperature -- to find out if you're sick, to determine the comfortability of the room you're in, et cetera.Or it can be used to find how hot or cold something is..and to ensure cooking Temperatures
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Can use medical electronic thermometer to measure air temperature?
Most medical electronic thermometers are not calibrated to measure ambient temperatures.
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