Water barometer is possible provided
barometer tube is how many m long.
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Answers
Answer:
If water would be used in barometer, barometer tube should have the huge height of 10.3m Mercury is 13.6 times more dense than water and a column weight of only 760mm of Hg equals the forces generated by atmospheric pressure, so the tube can be much shorter.
Mercury is more dense. Its relative density is 13.534 times that of water. So, to measure the atmospheric pressure, which is 760mm of mercury you need a barometer ,with mercury, of length slightly more than 0.76m, say one meter to cover the special cases of some higher pressure. If you use water, you have to have the length of barometer of length (or height) 13.534 times the length of mercury barometer, which may be more than 11m in length. Further mercury, being a metal has the shining quality which highlight its reading clear. Also mercury, having comparatively lower specific heat and good conductor of heat, could come to the same temperature of the atmosphere more quickly.
Explanation:
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Answer:
76.5 centimetres.
In meters it is 0.765m
Explanation:
A barometer over 10 m tall and 0.765m long is very memorable. A trap should be used to prevent water being sucked into the vacuum pump. The water needs to be coloured, otherwise it is very difficult to see where the water column ends.
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