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A colligative property behaves like an ideal solution.
If this is a new fundamental force, then what is the particle that mediates it?
Quote from: puppypower on 10/06/2020 12:01:13A colligative property behaves like an ideal solution. Not even wrong.
Nice timing.https://xkcd.com/2318/
Entropy is not easy to explain. However, it is measurable, so we know it is real. For example; the absolute entropy of water is 63.45 J ˣ mol-1 ˣ K-1 at its triple point.
In the example I used, the entropic force was mediated by water instead of a fundamental particle.
Essentially, you need to show that you can multiply your "force" by a distance and get work done.Until then, you have not shown that you have a force.You have a farce,
Quote from: puppypower on 11/06/2020 12:06:08In the example I used, the entropic force was mediated by water instead of a fundamental particle.Then you can't consider it to be a fundamental force on par with the four true fundamental forces.
Or osmotic pressure times area equals the entropic force. If it quacks like a duck.
Quote from: puppypower on 12/06/2020 13:30:13Or osmotic pressure times area equals the entropic force. If it quacks like a duck.But the area is ill defined.Your idea is quackers.More importantly, osmosis isn't entropy.You can have- as you point out- an osmotic force.But it isn't an entropic force.
Maybe you can explain which of the four known forces of nature is at work during the colligative property called osmosis.
You need to use critical thinking skills
Quote from: puppypower on 13/06/2020 14:31:36Maybe you can explain which of the four known forces of nature is at work during the colligative property called osmosis. Electromagnetic.Quote from: puppypower on 13/06/2020 14:31:36You need to use critical thinking skills to work out how it is acting in this case.
If we allow an osmotic device to reach steady state, the concentrations will end up the same on both sides of the membrane.
You need to use critical thinking skills or stop
Quote from: puppypower on 14/06/2020 13:26:26If we allow an osmotic device to reach steady state, the concentrations will end up the same on both sides of the membrane. No it won't.Quote from: puppypower on 13/06/2020 14:31:36You need to use critical thinking skills or stop
Osmosis (/ɒzˈmoʊ.sɪs/)[1] is the spontaneous net movement of solvent molecules through a selectively permeable membrane into a region of higher solute concentration, in the direction that tends to equalize the solute concentrations on the two sides.[2][3][4] It may also be used to describe a physical process in which any solvent moves across a selectively permeable membrane (permeable to the solvent, but not the solute) separating two solutions of different concentrations.[5][6] Osmosis can be made to do work.[7] Osmotic pressure is defined as the external pressure required to be applied so that there is no net movement of solvent across the membrane. Osmotic pressure is a colligative property, meaning that the osmotic pressure depends on the molar concentration of the solute but not on its identity.
end up the same on both sides of the membrane.
The concentrations will not Quote from: puppypower on 14/06/2020 13:26:26end up the same on both sides of the membrane.They can't.On one side, you have solute, on the other side you don't.The side with the solute can't have a concentration of zero; the other side can only have a concentration of zero..So, you were plainly wrong.Now, what was that about spreading "fake news"?
You are forgetting to do an energy balance around the system.
Quote from: puppypower on 20/06/2020 12:03:58You are forgetting to do an energy balance around the system.No I didn't.But you forgot to do a mass balance.You are also ignoring common sense (and consequently looking a bit silly).On the side where there is salt, the concentration will always be higher than on the concentration where there is no salt.
I agree with your analyst of the mass balance. The salt cannot move the other way through the membrane. One side will never have salt if that side states with pure water. However, a chemical potential stills exists for a final state of balance. This lingering potential is reflected in the osmotic pressure head.
the concentrations will end up the same on both sides of the membrane.
You appear to work for CNN or some science bureaucracy propaganda wing.. What is the purpose of using fake news to undermine an interesting discussion that was based on sound and known science applied in new ways?