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When we chill some salt on a cucumber or etc. Why it becomes some wards cool......?

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CBSE/Class 10/Science Tuition/Class IX-X Tuition

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Chemistry Bonders

Due to osmosis process water will come out to the cucumber
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Tutor

Osmotic Pressure is the fundamental principle that governs it. When you add salt to the cucumber (or any high free water content foods), “something” causes water to flow from an area of low solute (salt) concentration to an area of high solute concentration until the two areas have an equal... read more

Osmotic Pressure is the fundamental principle that governs it. When you add salt to the cucumber (or any high free water content foods), “something” causes water to flow from an area of low solute (salt) concentration to an area of high solute concentration until the two areas have an equal ratio of solute to water. Scientists call that “something” as Osmosis. Also when salt or sugar is added to those foods, it creates an hypertonic environment, which is pretty much similar to the osmotic pressure and draws water out of the cells. The result is watery, soggy and awful cucumbers, if you left it alone for a while.

The molecular formula of salt is Nacl nothing but sodium Chloride. When we pour salt (Nacl) on the surface of the cucumber, the Nacl molecules comes in contact with the H20 molecules in the present in the cucumber. Nacl will have higher concentration then the H20 molecules. So the water molecules tends to come out of cucumber surface through osmotic process. (a process by which molecules of a solvent tend to pass through a semipermeable membrane from a less concentrated solution into a more concentrated one). This results in excess water on the surface of cucumber. This makes the cucumber cool when salt is poured on it.

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Tutor

The molecular formula of salt is Nacl nothing but sodium Chloride. When we pour salt (Nacl) on the surface of the cucumber, the Nacl molecules comes in contact with the H20 molecules in the present in the cucumber. Nacl will have higher concentration then the H20 molecules. So the water molecules tends... read more
The molecular formula of salt is Nacl nothing but sodium Chloride. When we pour salt (Nacl) on the surface of the cucumber, the Nacl molecules comes in contact with the H20 molecules in the present in the cucumber. Nacl will have higher concentration then the H20 molecules. So the water molecules tends to come out of cucumber surface through osmotic process. (a process by which molecules of a solvent tend to pass through a semipermeable membrane from a less concentrated solution into a more concentrated one). This results in excess water on the surface of cucumber. This makes the cucumber cool when salt is poured on it. read less
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It secrets water which is just a osmosis process. This osmosis process absorbs heat from surrounding that's why temperature becomes cool
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Maths Tutor

osmosis is the fundamental cause which results in formation of water layer and it feel cool due to difference in temp. between them
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Engineering Graduate

Osomatic Pressure play a vital role here. It can absorb water easily
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Tutor

when we salt to slices of cucumber then due to osmosis water from inside the bulk of cucumber comes to surface due to osmosis ( movement of solvent molecules through a semi-permeable membrane into a region of higher solute concentration). Then it vaporizes taking latent heat from the cucumber body and... read more
when we salt to slices of cucumber then due to osmosis water from inside the bulk of cucumber comes to surface due to osmosis ( movement of solvent molecules through a semi-permeable membrane into a region of higher solute concentration). Then it vaporizes taking latent heat from the cucumber body and cooling it further down than it already is. read less
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Tutor

WATER WILL COME OUT OF CUCUMBER HENCE IT BECOMES COOL.
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Science And Maths Tutor

Its because of osmosis as the water inside the cell moves from high concentration to low i.e. outside from the cucumber
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Trainer

When we put nacl on surface of cucumber then the nacl absorbs the water on surface, so the concentration of solvent ( water ) is low on surface and high inside core of cucumber, now we all know that solvent moves from high concentration to low concentration, so water comes out by osmotic pressure, and... read more
When we put nacl on surface of cucumber then the nacl absorbs the water on surface, so the concentration of solvent ( water ) is low on surface and high inside core of cucumber, now we all know that solvent moves from high concentration to low concentration, so water comes out by osmotic pressure, and process is called osmosis, now when nacl reacts with H2o molecules, then due to establishment of ionic H-H bonds , the enthalpy is gained , this is endothermic reaction so cucumber surface feels cool read less
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