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If liquid A and B form an ideal solution...

If liquid A and B form an ideal solution

A

the entropy of mixing is zero

B

the free energy of mixing is zero

C

the free energy as well as the entropy of mixing are zero

D

the enthalpy of mixing is zero

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The correct Answer is:
D
For an ideal solution `DeltaV=0,DeltaH=0`.
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Vapour pessure of a liquid or a solution is the pressure exerted by the vapour in equilibrium with the liquid or solution at a particular temperature. It depends upon the nature of the liquid and temperature. It depends upon the nature of the liquid and temperature. According to Raoult's law in a solution, the vapour pressure of a component at a given temperature is equal to the mole fraction of that component in solution multiplied by the vapour pressure of that component in hte pue state. this solution in which each component obeys Raoult's law are called ideal solutions. there are two types of non ideal solutions, showing positive deviations and negative deviations from ideal behaviour. If liquid A and B form ideal solution, then

The lquid A and B from ideal solutions. At 300 K, the vapour pressure of solution containing 1 mole of A and 3 mole of B is 550 mm Hg. At the same tempreature, if one more mole of B is added to this solution, the vapour pressure of the solution increases by 10 mm Hg. determinethe vapour pressure of A and B in their pure states (in mm Hg):

The liquids X and Y from ideal solution having vapour pressures 200 and 100mm Hg respectively. Calculate the mole fraction of component X in vapour phase in equilibrium with an equimolar solution of the two.

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Two liquid A and B have vapour pressure in the ratio P_A^(@) : P_B^(@) =1.3 at a certain temperature.Assume A and B from an ideal solution and the ratio of mole fractions of A to B in the vapour phase is 4 : 3, then the mole fraction of B in the solution at the same tempreature is :

Two liquids X and Y on mixing form an ideal solution. The vapour pressure of the solution containing 3 mol of X and 1 mole of Y is 550 mm of Hg. But when 4 mol of X and 1 mol of Y are mixed, the vapour pressure of the solution thus, formed is 560 mm of Hg. what will be the vapour pressure of the pure X and pure Y at this temperature?

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Benzene and napthalene form an ideal solution at room temperature. For this process, the true statement is

Mention the enthalpy of mixing (Delta_(mix)H) value to form an ideal solution?

OMEGA PUBLICATION-SOLUTIONS-Multiple Choice Questions
  1. In a mixture, A and B compounds show negative deviation as

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  2. Which of the following liquid pair shows positive deviation from Raoul...

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  3. If liquid A and B form an ideal solution

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  4. Which of the following is not correct for ideal solution?

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  5. Very dilute solutions which show deviations (positive or negative) fro...

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  6. Colligative properties of solutions are those which depend upon

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  7. Which of the following is a colligative property?

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  8. Which of the following is not a colligative property?t

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  9. The temperature at which the vapour pressure of a liquid becomes equal...

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  10. The molecular mass of a solute cannot be calculated by one of the foll...

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  11. Which of the following is correctly matched ?

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  12. If the elevation in boiling point of a solution of 10 gm of solute (mo...

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  13. Molal depression constant is calculated from the enthalpy of fusion (D...

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  14. The depression in freezing point is directly proportional to

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  15. A 0.5 molal solution of ethylene glycol water is used as coolant in a ...

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  16. An aqueous solution freezes at 1.186^(@)C (K(f)=1.86,K(b)=0.512). What...

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  17. Which of the following 0.10 m aqueous solution will have the lowest fr...

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  18. Which of the following aqueous solution will have highest depression i...

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  19. A solution contains non volatile solute of molecular mass M(2). Which ...

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  20. The relationship between osmotic pressure at 273K when 10 g glucose (P...

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