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Why are thermometers so important can people die if their temperature is too high or low?
Wiki User
∙ 9y ago
Thermometers are important in order to tell exactly what a person's temperature is. A person can die from having a temperature that is either too high or too low.
Wiki User
∙ 9y ago
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What element is used in high temperature thermometers?
This element is gallium (Ga).
Is gallium used in thermometers?
Yes, because the melting point of gallium is very low ---- 29,76460C.
Why are Different types of thermometers used to measure more extreme temperature?
For example pyrometers for very high temperatures.
What instrument measures higher temperature?
Special thermometers for high temperatures, thermistors, thermoresistances, thermocouples, infrared detectors.
What do thermometers tell doctors?
A thermometer can tell a doctor if a person has any changes in body temperature. If a persons temperature is high it could mean they have some type of infection.
Why was mercury chosen for the job with thermometers?
It is the only metal which is liquid at room temperature (liquid from -39oC to 357oC). More it has enough but not to much expansion on increasing temperature by one oC and a high heat conductivity, low vapor pressure at room temperature. Disadvantage: it is toxic when in free air. Moreover, you are only talking about room thermometers or medical. There are many types types thermometers which uses different materials.
What is the advantage and disadvantage of using water in a thermometer?
Thermometers are devices which can be used to measure the body temperature. The body temperature is an important health indicator, and to assess it properly the core temperature must be measured. The best way to this is through a rectal or aural measurement - these require specific thermometers. Aural measurements are most common in professional settings because of their reliability and ease of use, though a rectal measurement is still the most accurate. Nowadays most thermometers are electric, for greater accuracy and safety. Mercury thermometers are no longer used in medical applications, due to the toxicity of mercury, and many countries have banned the classic mercury-in-glass thermometers from such purposes.
What metal element is used to make thermometers?
it is mercury. its actually a liquid at room temperature.
Why is mercury used in clinical thermometers?
These days, mercury is considered too risky to use in thermometers (due to the risk of them breaking and contaminating people). Alternate techniques are used today in clinical thermometer, including electronic thermometers and ones based on liquid crystals that aren't as harmful should they leak out and even contactless infrared thermometers..Mercury was used in clinical thermometers due to:Its high thermal expansion (25 °C) 60.4  µm·m−1·K−1Linearity in thermal expansionSensitivity to rise in temperature
Why thermocouples are preferable to use in industry?
Thermocouples allow for higher temperature measurement than thermometers. These high temperatures are often found in industrial applications.
What two substances are used in the thermometer's glass tube?
MERCURY is commonly used in thermometers designed for medical and elevated temperatures, and ALCOHOL (with a coloured dye) is used in medical and very low temperature thermometers. Both these use glass tubes. Very high temperature thermometers contain Gallium, which is a liquid at room temperature, in a quartz tube.
Why mercury used in clinical thermometer?
These days, Mercury is considered too risky to use in thermometers (due to the risk of them breaking and contaminating people). Alternate techniques are used today in clinical thermometer, including electronic thermometers and ones based on liquid crystals that aren't as harmful should they leak out and even contactless infrared thermometers..Mercury was used in clinical thermometers due to:Its high thermal expansion (25 °C) 60.4  µm·m−1·K−1Linearity in thermal expansionSensitivity to rise in temperature
