Question

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

• A. $\Delta H _{\text {mixing }}>0$ (zero)
• B. $A-B$ interaction is stronger than $A-A\&B-B$ . interactions
• C. $A-A,B-B\&A-B$ interactions are identical
• D. $\Delta H _{\text {mixing }}<0($ zero $)$

Answer 1

Answer: (C)

When two components $A\&B$ form an ideal solution, the interactions $A-A,B-BandA-B$ are similar due to which no heat is absorbed or released and also volume after mixing remains same.