When an Uncharged Molecule Moves from a Concentration of 10

Multiple Choice

When an uncharged molecule moves from a concentration of 10 ^{- 4} M to 10 ^{- 2} M, is the process spontaneous, at equilibrium, or does it require an input of energy?

A) spontaneous
B) at equilibrium
C) input of energy required
D) It depends on the membrane potential.
E) None of the answers is correct.