Water potential is equal to:
Correct answer: D. Ψ s + Ψ p
- A. Ψ s + O.P
- B. Ψ s = T.P
- C. Ψ p + Ψ w
- D. Ψ s + Ψ p
Explanation
Water potential is the difference in the free energy or chemical potential per unit molal volume of water in a system and that of pure water at the same temperature and pressure. Water potential is represented by Greek letter Ψ (psi) or Ψ w. Water potential is the sum total of Ψ s and Ψ p. Therefore, Ψ w = Ψs + Ψp. Hence correct option is D.
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