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Do mercury thermometers last longer than other thermometers?

If two mercury thermometers are of same dimensions, one is 0 to 50 and other 0 to 500 degree celcius . How?

  • if two mercury thermometers are of same volumetric dimensions, same mercury filled in it.one is 0 to 50 degree centigrade(celcius) and other 0 to 500 degree celcius . How is this possible. I need reply by 10th september! please help me!

  • Answer:

    Wow, weird question. Maybe the pressure inside could be greater in the 500 thermometer? Just an idea.

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the size of inside capilarry and marking(graduation) matters

Freddy

Are you absolutely sure they're the same dimension? Remember that the overall size of the thermometer isn't important, only the inner diameter. Even a very small difference here will have a major effect on the scale of the thermometer, but will not be perceptible to your eye.

Pablo Diablo

Hi. Assuming you mean their EXTERNAL volumetric dimensions then the mercury expansion area (the silver line that you see) must have a different diameter. Larger in the case of the 0-500 C.

Cirric

Perhaps the density of the mercury is different in each thermomater?

marchain_ca

Two mercury thermometers are of same dimensions. capillery sizes of both are same.impurities are also same. Thermometer works on the principle of vapour pressure. Then there is no science that one is 0 to 50 and other 0 to 500 degree celcius . Only matters is that the both the thermometers are graduated for full length? If not then it is possible.

jdsheth2004

Mercury boils at 357 degrees C. Better check the label (graduations?) again. Good luck.

Kes

the size of the capillary in the 0-50 is like this ------------ the 0-500 is like this |||||||||||||||||||||||||. just the size is all.

midi_junkie

Are you certain that you have 2 thermometers and one of them is not a barometer.

LeBlanc

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