question_answer 77)

  Volume of a solution changes with change in temperature then, will the molality of the solution be affected by temperature? Give reason for your answer.

Answer:

  Molality is independent of volume hence it is independent of temperature. \[m=\frac{{{w}_{B}}\times 1000}{{{m}_{B}}\times {{w}_{A}}}\] where, \[{{w}_{B}}=\] mass of solute \[{{w}_{A}}=\] mass of solvent \[{{m}_{B}}=\] molecular mass of solute.