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I need help with For an ideal solution of two components A and B, which of the following is true ?

For an ideal solution of two components A and B, which of the following is true ?

• Option 1)

Hmixing < 0 (zero)

• Option 2)

Hmixing > 0 (zero)

• Option 3)

A-B interaction is stronger than
A-A and B-B interactions

• Option 4)

A-A, B-B and A-B interactions
are identical

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As we have learnt,

Condition of ideality -

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

eg. Hexane + Heptone

Benzene + Toluere

- wherein

$\Delta H_{mix}= 0$

$\Delta V_{mix}= 0$

$\Delta H - Change \: in\: enthalpy$

$\Delta V - Change \: in\: volume$

Fact.

Option 1)

Hmixing < 0 (zero)

Option 2)

Hmixing > 0 (zero)

Option 3)

A-B interaction is stronger than
A-A and B-B interactions

Option 4)

A-A, B-B and A-B interactions
are identical

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