reverse osmosis soft water

By this technique sewage water can he converted into fairly clean drinking water..

Reverse Osmosis and Water Purification - The osmosis process can actually be reversed if a pressure larger than the osmotic pressure be applied to the solution. This phenomenon has found uses in water purification, especially the desalinat..

It is a physical process in which the solvent (water) moves from the region of its higher concentration to the region of its lower concentration across a semi-permeable membrane. This is to say that water moves from a dilute to a concentrated solution. Water is absorbe..

It is a process involving net diffusion of water molecules from a region of higher water concentration to a region of lower water concentration through a semipermeable membrane. The osmotic movement of water from a surrounding medium into a cell is called end..

Hard and Soft Water - Water is described as being 'hard' if it does not lather readily with soap. 'Soft water', on the other hand, is described as the one, which lathers readily with soap. Chemically, natural water is never pure and contai..

Soap is the sodium salt of stearic acid, i.e. sodium stearate (C 1 7 H 3 5 COO - Na + ) and is soluble in ordinary water. When soap (Sodium salt of stearic acid) is added to water in the absence of insoluble calcium and magnesium salts (Ca 2 + and Mg ..

A thistle funnel, covered at the broad end by a differentially permeable membrane, contains a 10% sugar solution. The beaker contains a 5% sugar solution as shown in fig. a. The solute is unable to pass through the membrane, but the water passes freely through in both directions. The net..

In the absorption of water by plants Cell to cell movement of water occurs throughout the plant body The rigidity of plant organs is maintained Leaves become turgid and expand due to osmotic pressure Growing points of root remain turgid and penetrate the soil parti..

Most of the reactions are reversible in nature. In these reactions both the forward and the backward reactions occur simultaneously. For e.g., in the following reaction, the forward reaction is exothermic; but the backward reaction is endothermic: But both the reactions occur. This m..

A dormant seed contains 10-15% of water and is generally dehydrated. So the dormant seed has to absorb water to become active and exhibit germination. Water makes the seed coat soft, causes it to rupture after swelling and start germination. Water i..