SOLUTIONS in 90 Minutes | BEST for Class 12 Boards

NCERT Wallah2 minutes read

The text discusses the importance of selecting the right solvent for solutions, using examples like tea and lemonade. It also emphasizes understanding concepts like volume, vapor pressure, and the balance of molecules in solutions.

Insights

  • The importance of selecting the right solvent in solutions is emphasized, with examples like tea and lemonade used to illustrate this concept, highlighting the role of solvents like water as a medium for other components.
  • The text delves into the dynamics of liquid molecules, discussing vapor pressure's dependence on temperature and liquid nature, while also stressing the significance of consistent revision, clarity in understanding topics, and the need to clarify doubts with others to progress systematically.

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Recent questions

  • What is the role of solvents in solutions?

    Solvents, like water, provide a medium for other components.

  • How is volume represented in solutions?

    The volume of solutions can be represented in grams or other units.

  • What is the significance of vapor pressure in liquids?

    Vapor pressure in liquids depends on temperature and nature.

  • How can one delete a solution if needed?

    Instructions on deleting a solution are provided.

  • Why is consistent revision important in education?

    Consistent revision is crucial for understanding topics systematically.

Related videos

Summary

00:00

Understanding Solutions: Solvents, Volumes, and Dynamics

  • The solution is crucial in the loot, with a focus on the solution in this chapter.
  • Different solvents are discussed, emphasizing the importance of selecting the right solvent.
  • Tea and lemonade are used as examples to explain the concept of solvents and solutions.
  • The role of solvents, like water, in solutions is highlighted, providing a medium for other components.
  • The volume of solutions is discussed, with details on representing it in grams or other units.
  • The basic definition of volume in solutions is explained, focusing on the division of volumes.
  • Instructions on how to delete a solution if needed are provided.
  • The concept of solvents in water is reiterated, emphasizing clarity in understanding.
  • The balance of molecules in solutions is detailed, explaining the dynamics of liquid molecules.
  • Vapor pressure in liquids is discussed, emphasizing its dependence on temperature and nature of the liquid.

34:24

"Education Service: Sainik School Resources and Techniques"

  • The text discusses the importance of subscribing to a particular service for educational purposes.
  • It mentions the availability of resources related to Sainik School and revision techniques.
  • Emphasizes the significance of consistent revision and avoiding procrastination.
  • Refers to the need for clarity in understanding topics and moving forward systematically.
  • Talks about the importance of discussing and clarifying doubts with others.
  • Mentions the relevance of specific names like P Quadrants, Lok President, PM, and O Qureshi.
  • Discusses the concept of quality properties in relation to nature and solvent properties.
  • Explains the significance of pressure and volume in gas properties.
  • Highlights the importance of concentration terms and the relationship between pressure and volume.
  • Concludes with a discussion on mixing solutions and the impact on volume in the process.

01:07:30

"Positive Reviews and Negative Reactions Explained"

  • Jhappi total is always higher than your total, according to Rahul, lower pressure indicates a mistake.
  • Pacific is mentioned as a result of this situation.
  • Delta-1 and Delta-2 are always positive, leading to reviews being distributed positively.
  • Examples are provided to illustrate the concept.
  • Idli preparation is discussed, emphasizing negative reactions.
  • Entropy is always in opposition.
  • Elevation in boiling point is explained, proportional to the solution's height.
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