when it reaches the top of the lake
2006-12-10 19:11:07 · 14 answers · asked by Anonymous in Science & Mathematics ➔ Physics
Two more possible answers:
1. as the bubble rises, it may cause other dissolved gases to join the gaseous phase because of momentary pressure variations - an effect similar to opening a bottle of carbonated drink.
2. As the bubble meets the surface, the diameter of the bubble gets larger because it is no longer a sphere, but only a lense-shaped bubble on the surface. The volume remains the same.
2006-12-10 19:15:17 · answer #1 · answered by jorganos 6 · 0⤊ 2⤋
The pressure P and volume V of a gas at constant temperature is related by the equation PV is a constant.
Therefore, if the pressure decreases, the volume of the gas increases.
The air bubble being less dense than the surrounding liquid, it rises to the surface of the liquid.
The pressure at the bottom of the liquid is given by the formula,
Atmospheric pressure + H dg. H is the height of the liquid surface from the point under consideration.
If the height of liquid is decreased, then the pressure is also the decreased.
When the bubble rises, it finds the outside pressure (due to the liquid) decreasing.
For equilibrium of pressure, the pressure of gas inside the bubble decreases so as to be equal to the out side pressure.
As per Boyle’s law, the volume of the bubble increases so as to equalize the external pressure, as it goes up.
2006-12-10 20:43:38 · answer #2 · answered by Pearlsawme 7 · 0⤊ 0⤋
Think of it this way. A bubble at the bottom of the ocean has a TON of water above it pressing down on it and compressing it. All that water is a lot of weight. So the further it goes up, the less water there is above it causing all that pressure and so it is allowed to expand more.
If you went deep enough, all of the weight of that water (water pressure) would literally crush you.
The atmosphere works the same way. When traveling in a plane, sometimes a sealed container with air will cause the container to expand. If some of the air escapes, the container will be crushed when the plane lands. Containers with things like gel or lotion will sometimes make a mess because of this.
2006-12-10 19:17:41 · answer #3 · answered by Nex52 2 · 1⤊ 0⤋
Water pressure is much greater at the bottom of the lake, compressing the bubble. As it rises to the surface, the bubble expands due to the pressure lessening.
2006-12-10 19:17:06 · answer #4 · answered by badabingbob 3 · 2⤊ 0⤋
You are obviously talking about non-saline, fresh-water bodies.Otherwise, the results of scuba diving or release of bubbles from lungs, from underwater involves human agency and force.The spherical outline of a bubble is water-proof but as it goes up, the pressure gradient on its route is reduced. If your lab has advanced boundry extent electromagnetic microscope you will find Maxwell's demons on entry points that do not permit any entry of water, etc which would demolish the bubble.This implies miniscule entry points and that makes the bubble porous.On a decreasing pressure garadient, when going up, the only way for the bubble to maintain itself morphologically is to get rid of the regulatory Maxwell's demon and open up its pores to let air enter inside the bubble. That increases the size and as a rule,air pressure on bubble after that reaches the surface of the water body is also responsible for bursting bubbles.
2006-12-10 20:30:28 · answer #5 · answered by debussyyee 3 · 0⤊ 0⤋
The pressure increases with depth in any fluid, so as a bubble rises, it experiences less pressure. This allows the gas in the bubble to expand.
2006-12-10 19:20:00 · answer #6 · answered by aichip_mark2 3 · 1⤊ 0⤋
as the bubble rises the pressure around it decreases and the gasses expand which causes the bubble to get bigger, the same principle applies when scubadiving, if you take a breath at the surface and dive 100 feet and come back up you will be fine, but just say you were able to take a breath at 100 feet of air like with an air tank, then as you begin to surface the air expands, if you held your breath you would litterly blow your lungs up.
2006-12-10 19:16:12 · answer #7 · answered by Ttech 2 · 0⤊ 0⤋
tension strengthen with intensity in water. A gas bubble released on the backside of a lake grows in length because it rises to the exterior of the lake because of the fact tension shrink constantly while it circulate up in water.
2016-12-11 06:44:45 · answer #8 · answered by sickels 4 · 0⤊ 0⤋
because the oxygen goes to the air when the it reaches to the top of the lake.
2006-12-11 08:09:01 · answer #9 · answered by ♥♪♫Priya_akki™♫♪♥ 6 · 0⤊ 0⤋
because pressure of water near the surface is less compare to bottom.
2006-12-10 19:23:49 · answer #10 · answered by rajan naidu 7 · 1⤊ 0⤋