Question

What is the water potential equation?

Answer 1

Hint: As solute is added, the chances subsided and fewer that a degree gradient are often found out between that solution and a second solution which will favor the movement of water out of the initial solution.

Complete answer:
Water potential ($Ψ$) may be a measure of water’s potential to try to to work. so as to try to to work, an object must be ready to apply enough force to a different object to cause displacement. so as for water to displace another object, water must be moving.
The largest water potential any volume of water can have, if only the standard atmospheric pressure is being applied thereto volume of water, and is defined as 0. This is often the water potential for water . Water has the best potential to maneuver, and thus it can displace another object.
As solute is added to water with no outside pressure being applied thereto, the water potential of that solution drops. It means the water therein solution is a smaller amount likely to try to work. In other words, it's less likely to move.
Water potential ($Ψ$) is actually determined by taking into account two factors - osmotic (or solute) potential ($Ψ_{S}$) and pressure potential ($Ψ_{P}$). The formula for calculating water potential is $Ψ$ = $Ψ_{S}$ + $Ψ_{P}$.

Note:
The osmotic potential is directly proportional to the concentration of solute in a solution. If the concentration of a solution increases, the potential for the water in that solution decreases. Hence, the more solute that is added to a solution the more negative its osmotic potential becomes. If no pressure is applied to the solution then the solute potential is equal to the water potential.