Question:
0.5g of non-volatile solute is added to 39g of Benzene. Then vapor pressure of solution is (vapor pressure of pure Benzene is 0.850 torr)
0.5g of non-volatile solute is added to 39g of Benzene. Then vapor pressure of solution is (vapor pressure of pure Benzene is 0.850 torr)
Show Hint
When calculating vapor pressure depression, use Raoult's Law and remember to consider the molar masses and the mass of the solute and solvent.
Updated On: May 9, 2025
- 0.845 torr
- 0.850 torr
- 0.860 torr
- 0.870 torr
Hide Solution
Verified By Collegedunia
The Correct Option is A
Solution and Explanation
The change in vapor pressure due to the addition of a non-volatile solute can be calculated using Raoult's Law:
\[ \Delta P = P_0 - P = \frac{n_{\text{solute}}}{n_{\text{solvent}}} \times P_0 \] Given that \( P_0 = 0.850 \) torr and the amount of solute added is small, the new vapor pressure is:
\[ \text{New vapor pressure} = 0.845 \, \text{torr} \]
\[ \Delta P = P_0 - P = \frac{n_{\text{solute}}}{n_{\text{solvent}}} \times P_0 \] Given that \( P_0 = 0.850 \) torr and the amount of solute added is small, the new vapor pressure is:
\[ \text{New vapor pressure} = 0.845 \, \text{torr} \]
Was this answer helpful?
0
0
Top Questions on Pressure
- The volume contraction of a solid copper cube of edge length 10 cm, when subjected to a hydraulic pressure of \( 7 \times 10^6 \) Pa, would be ________________________ mm\(^3\). (Given bulk modulus of copper = \( 1.4 \times 10^{11} \) N m\(^{-2}\))
- 1 torr = ________
- KEAM - 2025
- Physics
- Pressure
- The volume contraction of a solid copper cube of edge length 10 cm, when subjected to a hydraulic pressure of \( 7 \times 10^6 \) Pa, would be _____ mm\(^3\). (Given bulk modulus of copper = \( 1.4 \times 10^{11} \) N m\(^{-2}\))
- A spherical soap bubble inside an air chamber at pressure \(𝑃_0 = 10^5 \)Pa has a certain radius so that the excess pressure inside the bubble is Δ𝑃 = 144 Pa. Now, the chamber pressure is reduced to \(8𝑃_0/27\) so that the bubble radius and its excess pressure change. In this process, all the temperatures remain unchanged. Assume air to be an ideal gas and the excess pressure Δ𝑃 in both the cases to be much smaller than the chamber pressure. The new excess pressure Δ𝑃 in Pa is
- A 31.4 kg girl wearing high heel shoes balances on a single heel. The heel is circular with a diameter of 2 cm. The pressure exerted by the heel on the horizontal floor is (Acceleration due to gravity = 10 m/s\(^2\)):
View More Questions
Questions Asked in AP EAPCET exam
- If the solution of the system of simultaneous linear equations: $$ x + y - z = 6, $$ $$ 3x + 2y - z = 5, $$ $$ 2x - y - 2z + 3 = 0 $$ is \( x = \alpha, y = \beta, z = \gamma \), then \( \alpha + \beta = ?
- AP EAPCET - 2024
- Algebraic Methods of Solving a Pair of Linear Equations
If the ratio of the terms equidistant from the middle term in the expansion of \((1 + x)^{12}\) is \(\frac{1}{256}\), then the sum of all the terms of the expansion \((1 + x)^{12}\) is:
- AP EAPCET - 2024
- Binomial Expansion
A 3 kg block is connected as shown in the figure. Spring constants of two springs \( K_1 \) and \( K_2 \) are 50 Nm\(^{-1}\) and 150 Nm\(^{-1}\) respectively. The block is released from rest with the springs unstretched. The acceleration of the block in its lowest position is ( \( g = 10 \) ms\(^{-2}\) )
- AP EAPCET - 2024
- Hooke's Law
- If \( X \sim B(5, p) \) is a binomial variate such that \( p(X = 3) = p(X = 4) \), then \( P(|X - 3| < 2) = \dots \)
- AP EAPCET - 2024
- binomial distribution
- If the plane \[ x - y + z + 4 = 0 \] divides the line joining the points \[ P(2,3,-1) \quad \text{and} \quad Q(1,4,-2) \] in the ratio \( l:m \), then \( l + m \) is:
- AP EAPCET - 2024
- Section Formula
View More Questions