Explanation

The water potential ($\Psi$) is equal to osmotic potential ($\Psi_{s}$) + pressure potential ($\Psi_{p}$). Osmotic potential is always in negative value. The water potential is the chemical potential of water, which is equivalent to DPD with negative sign. Therefore, water potential ($\Psi_{A}$) of cell-A is $\Psi_{A} = \Psi_{s} + \Psi_{p}$=-18+8=-10 Water potential of cell-B($\psi_{B}$) is $\Psi_{B} = \Psi_{s} + \Psi_{p}$=-14+2=-12 Since, water moves from higher water potential, the flow of water will be from cell-A (-10 bars) to cell-B (-12 bars).