Question

Which one is an incorrect statement?

• A. Water potential is the sum of free energy of water molecules in pure water and in any other system.
• B. Water potential of pure water is zero.
• C. Free energy determines the direction by which physical and chemical changes should occur.
• D. Movement of water is expressed in terms of free energy.

Answer 1

The correct option is A

Water potential is the sum of free energy of water molecules in pure water and in any other system.

The free energy of water is the movement of water molecules in a system.

The movement of water molecules determines the free energy, which in turn signifies the physical and chemical changes.

The water potential of pure water at normal temperature and pressure is zero.

The water potential is the total of solute potential, matric potential and pressure potential of pure water.