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State Raoult's law. Explain from it why ...

State Raoult's law. Explain from it why the vapour pressure of a solution is always less than that of a pure solvent.

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Correct the following statements by changing the underlined part of the sentence. (Do not change the whole sentence): Vapour pressure of the solution is always ul("more") than that of the pure solvent.

The vapour pressure of a solution having solid as solute and liquid as solvent is:

In the depression of freezing point experimet, it is found that: I. The vapour pressure of the solution is less than that of pure solvent. II. The vapour pressure of the solution is more than that of pure solvent. III. Only solute molecules solidify at the freezing point. IV. Only solvent molecules solidify at the freezing point.

At a particular temperature why is the vapour pressure of acetone less than that of ether?

Using Raoult's Law explain how the total vapour pressure over the solution is related to mole fraction of components in the following solution. CHCl_(3)" "(l)and CH_(2)Cl_(2)(l)" "(b)NaCl(s)and H_(2)O(l)

According to Raoult's law the relative lowering of vapour pressure for a solution is equal to

Each question contains STATEMENT-I(Assertion) and STATEMENT-2(Reason).the statement carefully and mark the correct answer accoring to the instrution given below: STATEMENT - 1 : if a liquid solute more volatile than the solvent is added to the solvent, the vapour pressure of the solution is greater than vapour pressure of pure solvent. STATEMENT - 2 : Vapour pressure of solution is eqeal to vapour pressure of sovent.

Entropy of the solutions is higher than that of pure liquid . Why?

If Raoult's law is obeyed, the vapour pressure of the solvent in a solution is directly proportional to

When a solution of CHCl_(3) and acetone is formed, the solution is non-ideal with ………deviation from Raoult's law. The vapour pressure of such a solution will be ………….than the corresponding ideal solution.

ICSE-SOLUTIONS-EXERCISE (PART-II Descriptive Questions) (SHORT ANSWER QUESTIONS)
  1. How can you justify the observation that the V.P. of solution of a no...

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  2. Give any two examples of each type of liquid solutions showing positi...

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  3. State Raoult's law. Explain from it why the vapour pressure of a solut...

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  4. Write two differences between ideal and non-ideal solutions.

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  5. Give important differences between solutions showing positive and neg...

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  6. What are azeotropes ? Write two differences between maximum boiling an...

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  7. Define the term colligative property. Name four colligative properies.

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  8. Define vapour pressure of a liquid. What happens to the vapour pressu...

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  9. Show that relative lowering of vapour pressure is a colligative prope...

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  10. With the help of suitable diagrams, illustrate the two types of on-ide...

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  11. How does a non-ideal solution differ from an ideal solution ? When do...

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  12. What is meant by positive and negative deviations from Raoult's law a...

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  13. Define elevation in boiling point and show that it is a colligative p...

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  14. Illustrate elevation in boiling point with the help of vapour pressur...

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  15. If DeltaT is the elevation in boiling point of a solvent and m is the...

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  16. Draw the vapour pressure curve explaining depression in freezing poin...

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  17. Derive a formula determining molecular mass from depression in freezi...

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  18. What is osmosis ? What is the difference between osmosis and diffusio...

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  19. Name two inorganic compounds which can be used as semipermeable membr...

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  20. What is meant by semipermeable membrane ? Give one example each for n...

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