CBSE Class 12 Chemistry 2019 Delhi Set 2 Solved Paper - Question ...

CBSE Class 12 Chemistry 2019 Delhi Set 2 Solved Paper

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Question : 4 of 10

Marks: +1, -0

SECTION - B

Write two differences between an ideal solution and a non-ideal solution.

Solution:

	Ideal solution	Non-ideal solution
Raoult's Law	Solutions which obey Raoult's law over the entire range of concentrations.	Do not obey Raoult's law over the entire range of concentrations.
$\Δ_{\text "mix "} H$	The enthalpy of mixing of the pure components to form a solution is zero. $\Δ_{\text "mix "} {H}=0$	The enthalpy of mixing of pure components to form a solution is not zero. $\Δ_{\text "mix "} H>0$
$\Δ_{\text "mix "} {V}$	The volume of the mixing is also zero, $\Δ_{\text "mix "} {V}=0$ . That means the total volume of the solution is equal to the sum of the volume of the two components.	The volume of the mixing is not zero, $\Δ_{\text "mix "} V \≠0$ . The total volume of the solution is not equal to the sum of the volume of the two components.
Intermolecular interactions	In pure components, ${A}$ and ${B}$ , the intermolecular attractions between solutesolute interactions and solvent-solvent interactions are almost similar to the solute-solvent interaction.	In pure components, ${A}$ and ${B}$ , the intermolecular attractions between solute-solute interactions and solvent-solvent interaction are not similar to the solute-solvent interaction.

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