When using mercury for Torricelli experiments, the atmospheric pressure outside supports a column of mercury 0.76 m high. What is the minimum length of a glass tube for water? Please use the formula, I know the answer is 10.3m When using mercury for Torricelli experiments, the outside atmospheric pressure supports a column of mercury 0.76 m high. How long would it take to replace the glass tube with water? Please use the formula, I know the answer is 10.3m
P1= P2
ρWatergh water =ρsilvergh mercury
H water=13.6*0.76
=10.336 M
In the Torricelli experiment, if mercury is replaced with water, the length of the glass tube in the experiment is at least — m or more In the Torricelli experiment, if mercury is exchanged for water, the length of the glass tube in the experiment is at least — m or more
When water is used for the experiment, if the height of the water column is h water, the pressure generated is equal to 1 atmosphere, then
From P0=ρsilver*g*hmercury=ρwater*g*hwater
The height of the water column is hwater=hmercury mercury/ρwater=76*13.6/1=1033.6cm
It can be seen that the height of the water column is about 10m, so the length of the pipe should be at least 1033.6cm (usually 15m).
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