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Why is solute potential always negative ...

Why is solute potential always negative ? Explain `Psi_(w)=Psi_(s)+Psi_(p)`.

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Because solutions bear lower water potential when compared to pure water. Water potential of water is zero.
`Psi_(omega)=Psi_(s)+Psi_(p)`
More the solutes in a solution more negative will be the value of `Psi_(s)`.
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