For an ideal solution of two components A and B, which of the following is true ?
Show Hint
- \(\Delta H_{mixing}\lt0\) (zero)
- \(\Delta H_{mixing}\gt0\) (zero)
- A\(-\)B interaction is stronger than A\(-\)A and B\(-\)B interactions
- A\(-\)A, B\(-\)B and A\(-\)B interactions are identical
The Correct Option is D
Solution and Explanation
This happens because the A-B interactions are identical in strength to the A-A and B-B interactions, so Raoult's law is obeyed.
Options (1) and (2) say the enthalpy change is less/greater than zero (not zero), and option (3) describes a negative deviation. Only (4) is true.
Answer: (4) A\(-\)A, B\(-\)B and A\(-\)B interactions are identical
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