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It expands linearly and less than alcohol and any other liquid. It is more durable than alcohol thermometer because mercury does not evaporate easily. It is smaller in size as compared to alcohol one. Mercury does not wet the wall of the thermometer, which means that results can be highly accurate.
- What are the advantages of mercury over alcohol?
- What is the difference between a mercury thermometer and an alcohol thermometer?
- What is the disadvantage of mercury thermometer?
- What is advantage of resistance thermometer over ordinary mercury thermometer?
- What is the advantage of mercury thermometer?
- What are the advantages of using mercury as a thermometer liquid?
- Why is it better to take an alcohol thermometer instead of a mercury thermometer while you travel to the mountain region?
- Is it illegal to have a mercury thermometer?
- Under what conditions is it better to use alcohol instead of mercury in a thermometer?
- What are the advantages and disadvantages of clinical thermometer?
- What is the advantage of using the digital thermometer as compared to the traditional thermometer?
- What are the disadvantages of digital thermometer?
What are the advantages of mercury over alcohol?
Advantages of using alcohol over mercury as thermometric liquid are: i) Alcohol has greater value of temperature coefficient of expansion than mercury. ii) it's freezing point is below –100°C. Thus, alcohol thermometer is more sensitive than mercury thermometer and can be used to measure the temperature below –40°C.
What is the difference between a mercury thermometer and an alcohol thermometer?
Main Difference – Alcohol vs Mercury Thermometers
A thermometer is a device that is used to measure the temperature. ... The main difference between alcohol and mercury thermometer is that the bulb of mercury thermometer is filled with mercury whereas the bulb of alcohol thermometer is filled with an alcohol.
What is the disadvantage of mercury thermometer?
Disadvantages. It is highly toxic for living beings and the environment if the bulb breaks and mercury leaks out. Mercury is difficult to clean, and it can contaminate the surface on which it leaked. It cannot measure cold temperatures.
What is advantage of resistance thermometer over ordinary mercury thermometer?
Advantages. Resistance-temperature relationship is well characterized. Cost of an IPRT is less than an SPRT. Can be used with a digital temperature read-out device.
What is the advantage of mercury thermometer?
Mercury is the only one in liquid state at room temperature. It's used in thermometers because it has high coefficient of expansion. Hence, the slightest change in temperature is notable when it's used in a thermometer. It also has a high boiling point which makes it very suitable to measure higher temperatures.
What are the advantages of using mercury as a thermometer liquid?
Advantages of mercury as a thermometric liquid. -It is a good conductor of heat and therefore the whole liquid reaches the temperature of the surroundings quickly. -It does not wet (cling to the sides of) the tube. -It expands uniformly (linear expansion) and responds quickly to temperature changes, hence is sensitive.
Why is it better to take an alcohol thermometer instead of a mercury thermometer while you travel to the mountain region?
Mercury has a greater coefficient of thermal expansion than alcohol. This means a column of mercury will expand and rise more than a column of alcohol for the same temperature change. As a result, you can get finer readings with mercury. ... Mercury is poisonous, and a broken thermometer in the mouth is not good.
Is it illegal to have a mercury thermometer?
Those days have passed. Since 2001, 20 states have banned mercury “fever thermometers” for medical use, and regulations tighten every year. ... But as of today the federal government has more or less killed the mercury thermometer in the United States—NIST has announced it will no longer calibrate mercury thermometers.
Under what conditions is it better to use alcohol instead of mercury in a thermometer?
Explanation: The freezing point of mercury is approx -39°C and that of alcohol is -114°C. Therefore, in areas of extreme cold conditions, alcohol thermometer is better to use than mercury thermometer.
What are the advantages and disadvantages of clinical thermometer?
The advantages of these types of thermometers is that they are cheap, easy to read, can be submerged in liquids, require very little maintenance and are reliable. The disadvantages are that they break easily and there is risk of mercury poisoning if the glass tube breaks.
What is the advantage of using the digital thermometer as compared to the traditional thermometer?
Digital thermometers provide faster results
Digital thermometers provide fast results as opposed to mercury thermometers whose readings are slower to realize because you have to wait for the mercury to heat and then slowly rise to display the temperature.
What are the disadvantages of digital thermometer?
The advantages of digital thermometers are that they are inexpensive, easy to read, require very little maintenance and give an accurate reading. The disadvantage is that they get damaged easily if dropped and the battery powering them eventually runs out.
