Question

15 cm3 of liquied x and 20 cm3 of liquid y are mixed at 200C and the volume of solution was measured to be 35.1 cm3 then correct reaction is
A)
B)
C)
D)

Answer 1

Answer:

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Answer 2

Option C is correct.

$\Delta {{H}_{mix}}$ is less than 0, solution shows -ve deviation

Explanation:

• The enthalpy of solution, enthalpy of dissolution, or heat of solution is that the enthalpy change related to the dissolution of a substance in an exceedingly solvent at constant pressure leading to in infinite dilution.
• The enthalpy of solution is most frequently expressed in kJ/mol at constant temperature.
• This is negative deviation.

         1. $\[{{P}_{T}}\text{ exp }< {{x}_{A}}p{}^\circ +{{x}_{B}}p{}^\circ \]$

         2. $& A---A \\ & \text{ \ \ \ \\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ }>\text{ A-----B} \\ & B---B$

        3. Strong force of attraction

         4. Enthalpy of this solution will be less

         5. $\Delta {{H}_{mix}}=-ve$

         6. $\[\Delta {{V}_{mix}}=-ve\]$  ($\[1L+1L<\text{ 2L}$)

         7. $\Delta {{S}_{mix}}=+ve$

         8. $\Delta {{G}_{mix}}=-ve$

Hence, option C is correct.

$\Delta {{H}_{mix}}$ is less than 0, solution shows -ve.