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Question: Answered & Verified by Expert
A solution containing components $\mathrm{A}$ and B follows Raoult's law if:
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Options:
  • A $\mathrm{A}-\mathrm{B}$ attraction force is greater than $\mathrm{A}-\mathrm{A}$ and $\mathrm{B}-\mathrm{B}$
  • B $\mathrm{A}-\mathrm{B}$ attraction force is less than $A-A$ and $B-B$.
  • C attraction force remains same as in $\mathrm{A}-\mathrm{A}$ and $\mathrm{B}-\mathrm{B}$
  • D volume of the solution is different from the sum of volume of the solute and the solvent.
Solution:
2806 Upvotes Verified Answer
The correct answer is: attraction force remains same as in $\mathrm{A}-\mathrm{A}$ and $\mathrm{B}-\mathrm{B}$
Raoult's law is valid for ideal solution only. These two components A and B follows the condition of Raoult's law if the force of attraction between $\mathrm{A}$ and $\mathrm{B}$ is equal to the force of attraction between A-A and B-B
Positive non-ideal behavior of the vapor pressure of a solution follows Henry's Law at low concentrations and Raoult's Law at high concentrations (pure).

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