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Why water potential of pure water at standard temperatureis taken as zero

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  • Gadakh
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3 Answers

  • This is a reference and not compulsory you can take other value also then water potential of other solutions will have other Value with respect to that Value.

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  • Water potential is the measure of potential i.e. energy of water molecules . Addition of solute always decreses this energy. Thus pure water which has zero solute has maximum potential energyi.e. water potential. Thus we give zero to pure water and less than zero i.e. negative to water having solute

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  • The water potential of pure water in an open container is zero because there is no solute and the pressure in the container is zero. Adding solute lowers the water potential...Water potential is always negative, water being pure has a potential of zero as it can diffuse the easiest. The higher the concentration the more negative the water potential.

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