COMEDK · Chemistry · 6. Thermodynamics (C)
Heat liberated with \(100 \mathrm{~mL}\) of \(1 \mathrm{~N} \mathrm{~NaOH}\) is neutralised by \(300 \mathrm{~mL}\) of \(1 \mathrm{~N} \mathrm{~HCl}\)
- A \(11.56 \mathrm{~kJ}\)
- B \(5.73 \mathrm{~kJ}\)
- C \(22.92 \mathrm{~kJ}\)
- D \(17.19 \mathrm{~kJ}\)
Answer & Solution
Correct Answer
(B) \(5.73 \mathrm{~kJ}\)
Step-by-step Solution
Detailed explanation
Equivalent of \(\mathrm{NaOH}\) neutralised by \(\mathrm{HCl}\) \(=100 \times 1 \times 10^{-3}=0.1 \mathrm{~mol}\) \(\therefore\) Heat released \(=57.3 \times 0.1=5.73 \mathrm{~kJ}\)
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