Question

Which of the following statements, regarding the mole
fraction (x) of a component in solution, is incorrect?
(a) 0 ≤ x ≤1 (b) x ≤1
(c) x is always non-negative (d) None of these

Answer 1

Answer:

Which of the following statements, regarding the mole

fraction (x) of a component in solution, is incorrect?

(a) 0 ≤ x ≤1

(b) x ≤1

(c) x is always non-negative

(d) None of these

Answer 2

The incorrect statement regarding mole fraction (x) is $x\leq 1$

Explanation:

• The mole fraction is the number of moles of a component in the solution divided by the total number of moles in the given solution.

$\text {Mole fraction } = \dfrac{\text{No. of moles of component A}}{\text{No. of moles of component A + No. of moles of component B}}$

• Mole fraction is always non - negative.
• Sum of mole fractions of all components in the solution is equal to 1.

Hence, $x\leq 1$ is incorrect regarding mole fraction as it can never be negative or equal to 1.