A) - 2.3 bars
B) zero bar
C) 22.4 bars
D) + 2.3 bars
Correct Answer: A
Solution :
Water potential is defined as the chemical potential of water divided by the partial molal water (ie, the volume of 1 mole of water). Water potential is a measure of the free energy associated with water per unit volume (Jm-3) The unit of water potential is bars or pasca1 (1MPa = 10 bars). It is denoted by \[\text{ }\!\!\psi\!\!\text{ }\] (psi). The value of water potential is negative but the highest value of water potential is zero.
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