MHT CET · Chemistry · Solutions
Vapour pressure of solvent 'A' is \(0.90 \mathrm{~atm}\), when a non volatile solute is added, vapour pressure drops to \(0.60 \mathrm{~atm}\), what is mole fraction of \(\mathrm{A}\) in solution?
- A 0.3
- B 0.333
- C 0.5
- D 0.667
Answer & Solution
Correct Answer
(D) 0.667
Step-by-step Solution
Detailed explanation
\(
\begin{array}{l}
\frac{P_{0}-P}{P_{0}}=x_{2} \\
\frac{0.9-0.6}{0.9}=0.333
\end{array}
\)
Now, \(x_{1}+x_{2}=1\)
\(
\therefore \quad x_{1}=1-x_{2}=1-0.333=0.667
\)
\begin{array}{l}
\frac{P_{0}-P}{P_{0}}=x_{2} \\
\frac{0.9-0.6}{0.9}=0.333
\end{array}
\)
Now, \(x_{1}+x_{2}=1\)
\(
\therefore \quad x_{1}=1-x_{2}=1-0.333=0.667
\)
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Chemistry
- Which of the following is the formula of BHA?MHT CET 2020 Medium
- The geometry of \(I_{3}^{-}\) isMHT CET 2012 Easy
- A certain sample of gas has a volume of \(0.2 \mathrm{~L}\) at one atmosphere pressure and 273.15 K. What is the volume of gas at \(273.15^{\circ} \mathrm{C}\) at same pressure?MHT CET 2020 Medium
- Which statement from following is correct for hemolytic fission?MHT CET 2021 Medium
- Calculate the number of particles present per unit cell if mass of a particle is \(8.0 \times 10^{-23} \mathrm{~g}\left[\varrho \times a^3=3.2 \times 10^{-22} \mathrm{~g}\right]\)MHT CET 2025 Medium
- The monomers used in the preparation of dextron areMHT CET 2019 Medium
More PYQs from MHT CET
- If the angle between the lines represented by the equation \(x^2+\lambda x y-y^2 \tan ^2 \theta=0\) is \(2 \theta\), then the value of \(\lambda\) isMHT CET 2023 Hard
- With usual notations, if the lengths of the sides of a triangle are \(7 \mathrm{~cm}, 4 \sqrt{3} \mathrm{~cm}\) and \(\sqrt{13} \mathrm{~cm}\), then the measures of the smallest angle isMHT CET 2024 Medium
- How many numbers of P-0H and P-0-P bonds are present in pyrophosphoric acid respectively?MHT CET 2020 Easy
- If and then ________MHT CET 2019 Medium
- Two circular loops \(\mathrm{A}\) and \(\mathrm{B}\) of radii \({ }^{\prime} \mathrm{R}^{\prime}\) and ' \(\mathrm{NR}^{\prime}\) respectively are made from a uniform wire. Moment of inertia of B about its axis is 3 times that of A about its axis. The value of \(\mathrm{N}\) isMHT CET 2020 Medium
- Which of the following actinoids exhibits only \(+3\) oxidation stateMHT CET 2020 Easy