Class 12 Exam > Class 12 Questions > For a solution containing non-volatile solute...
Start Learning for Free
For a solution containing non-volatile solute, the relative lowering of vapour pressure is 0.2. If the solution contains 5 moles in all, which of the following are true ?
I. Mole fraction of solute in the solution is 0.2
II. No. of moles of solute in the solution is 0.2
III. No. of moles of solvent in the solution is 4
IV. Mole fraction of solvent is 0.2 -
II. No. of moles of solute in the solution is 0.2
III. No. of moles of solvent in the solution is 4
IV. Mole fraction of solvent is 0.2 -
- a)I, IV
- b)II, III
- c)I, III
- d)II, IV
Correct answer is option 'C'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Verified Answer
For a solution containing non-volatile solute, the relative lowering o...
As we know relative lowering of v.p. is equal to the mole fraction of the solute so (I) is correct it doesn’t depend upon the number of moles so (II) is wrong mole fraction of solvent will be 0.8 so number of moles of solvent will be 4 so (III) will be correct, (IV) will be also wrong so I & III will be correct
Most Upvoted Answer
For a solution containing non-volatile solute, the relative lowering o...
Explanation:
The relative lowering of vapor pressure (ΔP) is given by the equation:
ΔP/P° = x₂
Where:
ΔP = lowering of vapor pressure
P° = vapor pressure of the pure solvent
x₂ = mole fraction of solute in the solution
In this case, the relative lowering of vapor pressure is given as 0.2. This means that the vapor pressure of the solution is reduced by 0.2 times the vapor pressure of the pure solvent.
I. Mole fraction of solute in the solution is 0.2:
Since the relative lowering of vapor pressure is equal to the mole fraction of the solute, we can conclude that the mole fraction of the solute in the solution is indeed 0.2.
II. No. of moles of solute in the solution is 0.2:
The mole fraction of solute is the ratio of moles of solute to the total moles in the solution:
x₂ = moles of solute / (moles of solute + moles of solvent)
In this case, we are given that the relative lowering of vapor pressure is 0.2 and the total moles in the solution is 5. Therefore, we can calculate the moles of solute using the equation:
0.2 = moles of solute / 5
Rearranging the equation, we get:
moles of solute = 0.2 * 5 = 1
Therefore, the number of moles of solute in the solution is 1, not 0.2.
III. No. of moles of solvent in the solution is 4:
Since the total moles in the solution is given as 5 and we have already determined that the number of moles of solute is 1, we can calculate the number of moles of solvent using the equation:
moles of solvent = total moles - moles of solute
moles of solvent = 5 - 1 = 4
Therefore, the number of moles of solvent in the solution is indeed 4.
IV. Mole fraction of solvent is 0.2:
The mole fraction of solvent is calculated as the ratio of moles of solvent to the total moles in the solution:
x₁ = moles of solvent / (moles of solute + moles of solvent)
Using the values we have determined, we can calculate the mole fraction of the solvent:
x₁ = 4 / (1 + 4) = 4/5 = 0.8
Therefore, the mole fraction of the solvent is 0.8, not 0.2.
Therefore, options I and III are true, and the correct answer is option C.
The relative lowering of vapor pressure (ΔP) is given by the equation:
ΔP/P° = x₂
Where:
ΔP = lowering of vapor pressure
P° = vapor pressure of the pure solvent
x₂ = mole fraction of solute in the solution
In this case, the relative lowering of vapor pressure is given as 0.2. This means that the vapor pressure of the solution is reduced by 0.2 times the vapor pressure of the pure solvent.
I. Mole fraction of solute in the solution is 0.2:
Since the relative lowering of vapor pressure is equal to the mole fraction of the solute, we can conclude that the mole fraction of the solute in the solution is indeed 0.2.
II. No. of moles of solute in the solution is 0.2:
The mole fraction of solute is the ratio of moles of solute to the total moles in the solution:
x₂ = moles of solute / (moles of solute + moles of solvent)
In this case, we are given that the relative lowering of vapor pressure is 0.2 and the total moles in the solution is 5. Therefore, we can calculate the moles of solute using the equation:
0.2 = moles of solute / 5
Rearranging the equation, we get:
moles of solute = 0.2 * 5 = 1
Therefore, the number of moles of solute in the solution is 1, not 0.2.
III. No. of moles of solvent in the solution is 4:
Since the total moles in the solution is given as 5 and we have already determined that the number of moles of solute is 1, we can calculate the number of moles of solvent using the equation:
moles of solvent = total moles - moles of solute
moles of solvent = 5 - 1 = 4
Therefore, the number of moles of solvent in the solution is indeed 4.
IV. Mole fraction of solvent is 0.2:
The mole fraction of solvent is calculated as the ratio of moles of solvent to the total moles in the solution:
x₁ = moles of solvent / (moles of solute + moles of solvent)
Using the values we have determined, we can calculate the mole fraction of the solvent:
x₁ = 4 / (1 + 4) = 4/5 = 0.8
Therefore, the mole fraction of the solvent is 0.8, not 0.2.
Therefore, options I and III are true, and the correct answer is option C.
|
Explore Courses for Class 12 exam
|
|
Similar Class 12 Doubts
For a solution containing non-volatile solute, the relative lowering of vapour pressure is 0.2. If the solution contains 5 moles in all, which of the following are true ?I. Mole fraction of solute in the solution is 0.2II. No. of moles of solute in the solution is 0.2III. No. of moles of solvent in the solution is 4IV. Mole fraction of solvent is 0.2 -a)I, IVb)II, IIIc)I, IIId)II, IVCorrect answer is option 'C'. Can you explain this answer?
Question Description
For a solution containing non-volatile solute, the relative lowering of vapour pressure is 0.2. If the solution contains 5 moles in all, which of the following are true ?I. Mole fraction of solute in the solution is 0.2II. No. of moles of solute in the solution is 0.2III. No. of moles of solvent in the solution is 4IV. Mole fraction of solvent is 0.2 -a)I, IVb)II, IIIc)I, IIId)II, IVCorrect answer is option 'C'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about For a solution containing non-volatile solute, the relative lowering of vapour pressure is 0.2. If the solution contains 5 moles in all, which of the following are true ?I. Mole fraction of solute in the solution is 0.2II. No. of moles of solute in the solution is 0.2III. No. of moles of solvent in the solution is 4IV. Mole fraction of solvent is 0.2 -a)I, IVb)II, IIIc)I, IIId)II, IVCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for For a solution containing non-volatile solute, the relative lowering of vapour pressure is 0.2. If the solution contains 5 moles in all, which of the following are true ?I. Mole fraction of solute in the solution is 0.2II. No. of moles of solute in the solution is 0.2III. No. of moles of solvent in the solution is 4IV. Mole fraction of solvent is 0.2 -a)I, IVb)II, IIIc)I, IIId)II, IVCorrect answer is option 'C'. Can you explain this answer?.
For a solution containing non-volatile solute, the relative lowering of vapour pressure is 0.2. If the solution contains 5 moles in all, which of the following are true ?I. Mole fraction of solute in the solution is 0.2II. No. of moles of solute in the solution is 0.2III. No. of moles of solvent in the solution is 4IV. Mole fraction of solvent is 0.2 -a)I, IVb)II, IIIc)I, IIId)II, IVCorrect answer is option 'C'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about For a solution containing non-volatile solute, the relative lowering of vapour pressure is 0.2. If the solution contains 5 moles in all, which of the following are true ?I. Mole fraction of solute in the solution is 0.2II. No. of moles of solute in the solution is 0.2III. No. of moles of solvent in the solution is 4IV. Mole fraction of solvent is 0.2 -a)I, IVb)II, IIIc)I, IIId)II, IVCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for For a solution containing non-volatile solute, the relative lowering of vapour pressure is 0.2. If the solution contains 5 moles in all, which of the following are true ?I. Mole fraction of solute in the solution is 0.2II. No. of moles of solute in the solution is 0.2III. No. of moles of solvent in the solution is 4IV. Mole fraction of solvent is 0.2 -a)I, IVb)II, IIIc)I, IIId)II, IVCorrect answer is option 'C'. Can you explain this answer?.
Solutions for For a solution containing non-volatile solute, the relative lowering of vapour pressure is 0.2. If the solution contains 5 moles in all, which of the following are true ?I. Mole fraction of solute in the solution is 0.2II. No. of moles of solute in the solution is 0.2III. No. of moles of solvent in the solution is 4IV. Mole fraction of solvent is 0.2 -a)I, IVb)II, IIIc)I, IIId)II, IVCorrect answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 12.
Download more important topics, notes, lectures and mock test series for Class 12 Exam by signing up for free.
Here you can find the meaning of For a solution containing non-volatile solute, the relative lowering of vapour pressure is 0.2. If the solution contains 5 moles in all, which of the following are true ?I. Mole fraction of solute in the solution is 0.2II. No. of moles of solute in the solution is 0.2III. No. of moles of solvent in the solution is 4IV. Mole fraction of solvent is 0.2 -a)I, IVb)II, IIIc)I, IIId)II, IVCorrect answer is option 'C'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
For a solution containing non-volatile solute, the relative lowering of vapour pressure is 0.2. If the solution contains 5 moles in all, which of the following are true ?I. Mole fraction of solute in the solution is 0.2II. No. of moles of solute in the solution is 0.2III. No. of moles of solvent in the solution is 4IV. Mole fraction of solvent is 0.2 -a)I, IVb)II, IIIc)I, IIId)II, IVCorrect answer is option 'C'. Can you explain this answer?, a detailed solution for For a solution containing non-volatile solute, the relative lowering of vapour pressure is 0.2. If the solution contains 5 moles in all, which of the following are true ?I. Mole fraction of solute in the solution is 0.2II. No. of moles of solute in the solution is 0.2III. No. of moles of solvent in the solution is 4IV. Mole fraction of solvent is 0.2 -a)I, IVb)II, IIIc)I, IIId)II, IVCorrect answer is option 'C'. Can you explain this answer? has been provided alongside types of For a solution containing non-volatile solute, the relative lowering of vapour pressure is 0.2. If the solution contains 5 moles in all, which of the following are true ?I. Mole fraction of solute in the solution is 0.2II. No. of moles of solute in the solution is 0.2III. No. of moles of solvent in the solution is 4IV. Mole fraction of solvent is 0.2 -a)I, IVb)II, IIIc)I, IIId)II, IVCorrect answer is option 'C'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice For a solution containing non-volatile solute, the relative lowering of vapour pressure is 0.2. If the solution contains 5 moles in all, which of the following are true ?I. Mole fraction of solute in the solution is 0.2II. No. of moles of solute in the solution is 0.2III. No. of moles of solvent in the solution is 4IV. Mole fraction of solvent is 0.2 -a)I, IVb)II, IIIc)I, IIId)II, IVCorrect answer is option 'C'. Can you explain this answer? tests, examples and also practice Class 12 tests.
|
|
Explore Courses for Class 12 exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup