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AP EAMCET · Chemistry · Solutions

A solution is formed by the combination of two liquids such as dichloromethane and chloroform. The partial pressures of dichloromethane and.chloroform in solution are 285.5 and \(62.4 \mathrm{~mm} \mathrm{Hg}\) respectively. What is the total pressure of the solution?

  1. A \(223.1 \mathrm{~mm} \mathrm{Hg}\)
  2. B \(347.9 \mathrm{~mm} \mathrm{Hg}\)
  3. C \(357.9 \mathrm{~mm} \mathrm{Hg}\)
  4. D \(337.9 \mathrm{~mm} \mathrm{Hg}\)
Verified Solution

Answer & Solution

Correct Answer

(B) \(347.9 \mathrm{~mm} \mathrm{Hg}\)

Step-by-step Solution

Detailed explanation

\(\mathrm{P}_{\text {total }}=\mathrm{x}_1 \mathrm{P}_1^{\circ}+\mathrm{x}_2 \mathrm{P}_2^{\circ}\) \(\begin{aligned} & =\mathrm{P}_1+\mathrm{P}_2=285.5+62.4 \\ & =347.9 \mathrm{~mm} \mathrm{Hg} .\end{aligned}\) (as chloroform and dichloromethane form an ideal solution)