Explain how the water potential of pure water is more than a solvent?
Answers
Water potential is denoted by the Greek letter ψ (psi) and is expressed in units of pressure (pressure is a form of energy) called megapascals (MPa). The potential of pure water (Ψwpure H2O) is designated a value of zero (even though pure water contains plenty of potential energy, that energy is ignored).Nov 19, 2019
Answer:
Water Potential
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. When a solution is enclosed by a rigid cell wall, the movement of water into the cell will exert pressure on the cell wall. This increase in pressure within the cell will raise the water potential.
Look again at the equation for water potential:
Water potential (Ψ) = pressure potential (Ψp) + solute potential (Ψs)