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What is the molal elevation constant of solvent ?

Options

  1. Aratio of boiling point elevation to molarity of solution.
  2. Bratio of boiling point elevation to mole fraction of solution.
  3. Cratio of boiling point elevation to molarity of solute.
  4. Dratio of boiling point elevation to molality of solution.

Correct answer

D. ratio of boiling point elevation to molality of solution.

Step-by-step solution

The elevation in boiling point is given by the relation: T_b = K_b m where T_b is the elevation in boiling point, K_b is the molal elevation constant, and m is the molality of the solution. Rearranging the formula, we get: K_b = T_b m Thus, the molal elevation constant is the ratio of the boiling point elevation to the molality of the solution. Answer: ratio of boiling point elevation to molality of solution.

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