If liquids A and B  form an ideal solution, the

  • Option 1)

    enthalpy of mixing is zero

  • Option 2)

    entropy of mixing is zero

  • Option 3)

    free energy of mixing is zero

  • Option 4)

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

 

Answers (1)

We learnt in

Condition of ideality -

Interaction between A - A; B - B are similar to A - B Interactions.

eg. Hexane + Heptone

Benzene + Toluere

- wherein

\Delta H_{mix}= 0

\Delta V_{mix}= 0

\Delta H - Change \: in\: enthalpy

\Delta V - Change \: in\: volume

 

 

For ideal solutions, \Delta V_{mix}= 0 and \Delta H_{mix}= 0.

Correct option is 1.


Option 1)

enthalpy of mixing is zero

This is the correct option.

Option 2)

entropy of mixing is zero

This is an incorrect option.

Option 3)

free energy of mixing is zero

This is an incorrect option.

Option 4)

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

This is an incorrect option.

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