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Statement - I. Addition of a non-volatile solute causes a depression in vapour pressure.
Statement - II. Vapour pressure of a solution is directly proportional to mole fraction of solvent.
- a)Statement-1 is true, statement-2 is true and statement-2 is correct explanation for statement-1.
- b)Statement-1 is true, statement-2 is true and statement-2 is NOT the correct explanation for statement-1.
- c)Statement-1 is true, statement-2 is false.
- d)Statement-1 is false, statement-2 is true.
Correct answer is option 'A'. Can you explain this answer?
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Verified Answer
Statement - I. Addition of a non-volatile solute causes a depression i...
Statement-1 addition of nonvolatile solute causes a depression in v.p.
Statement-2 It is also correct because
so, it is directly proportional to the mole fraction of solute
Statement-2 It is also correct because
so, it is directly proportional to the mole fraction of solute
Most Upvoted Answer
Statement - I. Addition of a non-volatile solute causes a depression i...
Explanation:
Statement 1: Addition of a non-volatile solute causes a depression in vapour pressure.
- When a non-volatile solute is added to a solvent, the solvent molecules are replaced by solute molecules on the surface, reducing the number of solvent molecules escaping into the vapor phase. This results in a lower vapor pressure compared to the pure solvent, causing a depression in vapor pressure.
Statement 2: Vapour pressure of a solution is directly proportional to mole fraction of solvent.
- Raoult's Law states that the vapor pressure of a solution is directly proportional to the mole fraction of the solvent in the solution. This means that as the mole fraction of the solvent decreases due to the addition of a non-volatile solute, the vapor pressure also decreases proportionally.
Therefore,
- Statement 1 is true because the addition of a non-volatile solute does depress the vapor pressure.
- Statement 2 is true because the vapor pressure of a solution is indeed directly proportional to the mole fraction of the solvent, as per Raoult's Law.
- Statement 2 correctly explains Statement 1 because the depression in vapor pressure caused by the addition of a non-volatile solute can be explained by the decrease in mole fraction of the solvent in the solution, leading to a lower vapor pressure.
Statement 1: Addition of a non-volatile solute causes a depression in vapour pressure.
- When a non-volatile solute is added to a solvent, the solvent molecules are replaced by solute molecules on the surface, reducing the number of solvent molecules escaping into the vapor phase. This results in a lower vapor pressure compared to the pure solvent, causing a depression in vapor pressure.
Statement 2: Vapour pressure of a solution is directly proportional to mole fraction of solvent.
- Raoult's Law states that the vapor pressure of a solution is directly proportional to the mole fraction of the solvent in the solution. This means that as the mole fraction of the solvent decreases due to the addition of a non-volatile solute, the vapor pressure also decreases proportionally.
Therefore,
- Statement 1 is true because the addition of a non-volatile solute does depress the vapor pressure.
- Statement 2 is true because the vapor pressure of a solution is indeed directly proportional to the mole fraction of the solvent, as per Raoult's Law.
- Statement 2 correctly explains Statement 1 because the depression in vapor pressure caused by the addition of a non-volatile solute can be explained by the decrease in mole fraction of the solvent in the solution, leading to a lower vapor pressure.
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Statement - I. Addition of a non-volatile solute causes a depression in vapour pressure.Statement - II. Vapour pressure of a solution is directly proportional to mole fraction of solvent.a)Statement-1 is true, statement-2 is true and statement-2 is correct explanation for statement-1.b)Statement-1 is true, statement-2 is true and statement-2 is NOT the correct explanation for statement-1.c)Statement-1 is true, statement-2 is false.d)Statement-1 is false, statement-2 is true.Correct answer is option 'A'. Can you explain this answer?
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Statement - I. Addition of a non-volatile solute causes a depression in vapour pressure.Statement - II. Vapour pressure of a solution is directly proportional to mole fraction of solvent.a)Statement-1 is true, statement-2 is true and statement-2 is correct explanation for statement-1.b)Statement-1 is true, statement-2 is true and statement-2 is NOT the correct explanation for statement-1.c)Statement-1 is true, statement-2 is false.d)Statement-1 is false, statement-2 is true.Correct answer is option 'A'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about Statement - I. Addition of a non-volatile solute causes a depression in vapour pressure.Statement - II. Vapour pressure of a solution is directly proportional to mole fraction of solvent.a)Statement-1 is true, statement-2 is true and statement-2 is correct explanation for statement-1.b)Statement-1 is true, statement-2 is true and statement-2 is NOT the correct explanation for statement-1.c)Statement-1 is true, statement-2 is false.d)Statement-1 is false, statement-2 is true.Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Statement - I. Addition of a non-volatile solute causes a depression in vapour pressure.Statement - II. Vapour pressure of a solution is directly proportional to mole fraction of solvent.a)Statement-1 is true, statement-2 is true and statement-2 is correct explanation for statement-1.b)Statement-1 is true, statement-2 is true and statement-2 is NOT the correct explanation for statement-1.c)Statement-1 is true, statement-2 is false.d)Statement-1 is false, statement-2 is true.Correct answer is option 'A'. Can you explain this answer?.
Statement - I. Addition of a non-volatile solute causes a depression in vapour pressure.Statement - II. Vapour pressure of a solution is directly proportional to mole fraction of solvent.a)Statement-1 is true, statement-2 is true and statement-2 is correct explanation for statement-1.b)Statement-1 is true, statement-2 is true and statement-2 is NOT the correct explanation for statement-1.c)Statement-1 is true, statement-2 is false.d)Statement-1 is false, statement-2 is true.Correct answer is option 'A'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about Statement - I. Addition of a non-volatile solute causes a depression in vapour pressure.Statement - II. Vapour pressure of a solution is directly proportional to mole fraction of solvent.a)Statement-1 is true, statement-2 is true and statement-2 is correct explanation for statement-1.b)Statement-1 is true, statement-2 is true and statement-2 is NOT the correct explanation for statement-1.c)Statement-1 is true, statement-2 is false.d)Statement-1 is false, statement-2 is true.Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Statement - I. Addition of a non-volatile solute causes a depression in vapour pressure.Statement - II. Vapour pressure of a solution is directly proportional to mole fraction of solvent.a)Statement-1 is true, statement-2 is true and statement-2 is correct explanation for statement-1.b)Statement-1 is true, statement-2 is true and statement-2 is NOT the correct explanation for statement-1.c)Statement-1 is true, statement-2 is false.d)Statement-1 is false, statement-2 is true.Correct answer is option 'A'. Can you explain this answer?.
Solutions for Statement - I. Addition of a non-volatile solute causes a depression in vapour pressure.Statement - II. Vapour pressure of a solution is directly proportional to mole fraction of solvent.a)Statement-1 is true, statement-2 is true and statement-2 is correct explanation for statement-1.b)Statement-1 is true, statement-2 is true and statement-2 is NOT the correct explanation for statement-1.c)Statement-1 is true, statement-2 is false.d)Statement-1 is false, statement-2 is true.Correct answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for JEE.
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