Entropy change of mixing two liquid substances depends upon the_________________?
Correct answer: C. Both A. and B
- A. Molar concentration
- B. Quantity (i.e. number of moles)
- C. Both A. and B
- D. Neither A. nor B
Explanation
For ideal mixing, ΔSmix = -RΣni ln xi, so the entropy change depends on both the component amounts and their mole fractions or concentrations. Hence both listed factors matter.
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