Which of the following concentration factors is affected by changing in volume or volume dependent ?

Options

A. weight fraction
B. Mole fraction
C. Molality
D. Molarity

Answer

D

Explanation

On changing temperature, solvent `(H_(2)O) ` is vaporized or condensed. Thus, volume of solution and solvent changes. Thus, any concentration factor dependent on volume is affected by change in temperature.
(a) Weight fraction `= w_(i)//w_("total")` (Unitless)
(b) Mole fraction `= n_(i)//n_("total")` (unitless)
(c) Molality `= ("moles of solute")/("kg of solvent")` (weight dependent )
(d) Molarity `=("Mole")/("Litre")` (volume dependent)