Question

The two chambers, A and B, containing solution are separated by a semipermeable membrane.
At equilibrium, which chamber will have lower water potential?

• A. A
• B. B
• C. Both have same water potential
• D. Cannot be determined

Answer 1

The correct option is C Both have same water potential

Water potential is the potential energy of water per unit volume relative to pure water. Pure water has water potential of zero. Solutes reduce water potential. Solution A has lower water potential due to presence of high amount of solutes. However, at equilibrium, both the chambers will have the same water potential as both the chambers will have equal solute concentration.

Thus, the correct answer is 'Both have same water potential.'