Question

0.1 M solution has water potential of

• A. -2.43 bars
• B. 0 bar
• C. 22.4 bars
• D. +2.3 bars

Answer 1

Answer: (A)

-2.43 bars

Water potential of all solutions is negative because water potential of pure water is maximum which is zero.

Magnitude of water potential can be worked out by relation PV = nRT

Here, n is the number of moles, R the universal gas constant and T the temperature in kelvin.

We can substitute the value of T as 298, n as 0.1 and R as .08314 and find out the value of water potential.

Therefore, the correct answer is option A.