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Standard IX

Chemistry

Solutions

In terms of s...

Question

In terms of solution chemistry and solvation, which of the following is exothermic?

Separation of solute molecules.

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Separation of solvent molecules.

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Formation of solute-solvent interactions.

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Evaporation of a solvent from a solute.

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Solution

The correct option is A Formation of solute-solvent interactions.
Due to interaction between solute - solvent interaction energy is realesed due to interaction so reaction is exothermic reaction.

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Similar questions

Q. Formation of a solution from two components can be considered as:
(i) Pure solvent

\to

separated solvent molecules,

Δ H_{1}

(ii) Pure solvent

\to

separated solute molecules,

Δ H_{2}

(ii) Separated solvent and solute molecules

\to

solution,

Δ H_{3}

Solution so formed will be ideal if

Formation of a solution from two components can be considered as

(i) Pure solvent

\to

separated solute molecules,

△ H_{1}

(ii) Pure solute

\to

separated solute molecules,

△ H_{2}

solution so formed will be ideal if

(iii) Separated solvent and solute molecules

\to

solution,

△ H_{3}

Then:

Assertion (A) When a solution is separated from the pure solvent by a semipermeable membrane, the solvent molecules pass through it from pure solvent side to the solution side.
Reason (R) Diffusion of solvent occurs from a region of high concentration solution to a region of low concentration solution.

Q. Consider a binary mixture of volatile liquids.
For which of the following graph , solvent-solute interaction equal to that of solvent-solvent and the solute-solute interactions?

Q. Which is the interaction between the solute and the solvent molecules?

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In terms of solution chemistry and solvation, which of the following is exothermic?

The correct option is A Formation of solute-solvent interactions.Due to interaction between solute - solvent interaction energy is realesed due to interaction so reaction is exothermic reaction.

The correct option is A Formation of solute-solvent interactions.
Due to interaction between solute - solvent interaction energy is realesed due to interaction so reaction is exothermic reaction.