Traditional Culture Encyclopedia - The 24 Solar Terms - Why do the bubbles spit out by small fish in water change from small to large from bottom to top? Is this related to the internal pressure of the liquid?
Why do the bubbles spit out by small fish in water change from small to large from bottom to top? Is this related to the internal pressure of the liquid?
It is related to the pressure of the liquid. With the decrease of water depth, the pressure also decreases. P=ρgh, ρ is the density of the liquid, and the pressure of the gas in the bubble is constant. When it rises, the pressure of external water decreases, forming a pressure difference, so there is a pressure difference. The outward pressure generated inside the bubble is greater than the inward pressure given by water, so it becomes larger.
1.f = PS =1.6×10 ⌒ 5× 0.045n The standard atmospheric pressure is1.0/×10 ⌒ 5pa.
2. greater than, greater than
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