MEDIUMMCQ SINGLEJEE Mains ChemistryPhysical ChemistrySolutionsGeneral
Which of the following concentration terms is/are independent of temperature?
A.Molality only
B.Molality and mole fraction✓ Correct
C.Molality and normality
D.Molarity only.
Explanation
We know that the molarity of a solution is written as, no.of moles Molarity of solution = volume of solution in litres Normality is written as, no of gram equivalent of solute Normality = 1L of solution Both normality and the molarity depend on the volume of the solution. The volume of the solution varies with the temperature. The molality is written as, No.of moles of solute molality = 1Kg of solvent The molality of a solution is independent of temperature as mass does not depend on the temperature. Similarly, the mole fraction is also independent of temperature as mass does not depend on the
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