MCQ
For the spontaniety of reaction, which statement is always true?
- A$\Delta G = + ve:\,\Delta H = + ve:$
- B$\Delta H = + ve:\,\Delta S = - ve:$
- C$\Delta H = - ve:\,\Delta S = - ve:$
- ✓$\Delta H = - ve:\,\Delta S = + ve:$
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$P : 10\ ml, 0.1\ M\ NaOH + 5\ ml, 0.1\ M\ HCl$
$Q : 10\ ml, 0.1\ M\ NaOH + 15\ ml, 0.1\ M\ CH_3COOH$
$R : 10\ ml, 0.1\ M\ NH_3 + 10\ ml, 0.1\ M\ NH_4Cl$
$S : 10\ ml, 0.05\ M\ NaF + 5\ ml, 0.1\ M\ HF$
Which of above solutions act as buffer
