-
Engineering and Architecture
Exams
Colleges
Predictors
Resources
-
Computer Application and IT
Quick Links
Colleges
-
Pharmacy
Colleges
Resources
-
Hospitality and Tourism
Colleges
Resources
Diploma Colleges
-
Competition
Other Exams
Resources
-
School
Exams
Top Schools
Products & Resources
-
Study Abroad
Top Countries
Student Visas
-
Arts, Commerce & Sciences
Exams
Colleges
Upcoming Events
Resources
-
Management and Business Administration
Colleges & Courses
Predictors
-
Learn
Online Courses
Engineering Preparation
Medical Preparation
-
Online Courses and Certifications
Top Streams
Specializations
- Digital Marketing Certification Courses
- Cyber Security Certification Courses
- Artificial Intelligence Certification Courses
- Business Analytics Certification Courses
- Data Science Certification Courses
- Cloud Computing Certification Courses
- Machine Learning Certification Courses
- View All Certification Courses
Resources
-
Medicine and Allied Sciences
Colleges
Predictors
Resources
-
Law
Resources
Colleges
-
Animation and Design
Exams
Predictors & Articles
Colleges
Resources
-
Media, Mass Communication and Journalism
Colleges
Resources
-
Finance & Accounts
Top Courses & Careers
Colleges
Get Answers to all your Questions
- #National Eligibility Cum Entrance Test
- #Chemistry
- #Solutions
- #Medical
- #National Eligilibility Cum Entrance Test
- #Class 12
Which of the following statement is in favour regarding non-ideal solutions showing negative deviation from Raoult's law?
The vapour pressure of the solution is higher than predicted by Raoult's law.
The intermolecular forces between like molecules are stronger than those between unlike molecules.
The observed boiling point of the solution is higher than predicted by Raoult's law.
The observed freezing point of the solution is lower than predicted by Raoult's law.
Answers (1)
In a non-ideal solution showing negative deviation from Raoult's law, the intermolecular forces between unlike molecules are stronger than those between like molecules. This causes the molecules to stick together more tightly, making it harder for them to escape into the vapour phase. As a result, the vapour pressure of the solution is lower than predicted by Raoult's law.
According to the boiling point elevation equation, the observed boiling point of a solution is higher than that of the pure solvent due to the presence of solute molecules in the solution. However, in the case of negative deviation from Raoult's law, the observed boiling point is even higher than predicted by Raoult's law. This happens because the intermolecular forces between unlike molecules are stronger, making it harder for the solvent molecules to escape into the vapour phase and causing the boiling point to increase.
Therefore, option C, "The observed boiling point of the solution is higher than predicted by Raoult's law" is the correct statement regarding non-ideal solutions showing negative deviation from Raoult's law.
NEET 2024 Most scoring concepts
- Just Study 32% of the NEET syllabus and Score up to 100% marks
