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JEE Mains · Chemistry · STD 11 - 5. Thermodynamics and thermochemistry

रासायनिक अभिक्रिया \(A ( g )+ B ( g ) \rightarrow C ( g )+ D ( g )\), के लिए \(298\; K\) पर \(\Delta H^{\circ}\) तथा \(\Delta S^{\circ}\) के मान क्रमश: \(-29.8 \;kJ mol ^{-1}\) तथा \(-0.100 \;kJ K ^{-1} mol ^{-1}\) हैं। इस अभिक्रिया का \(298 K\) पर साम्य स्थिरांक है।

  1. A \(1.0 \times 10^{-10}\)
  2. B \(10\)
  3. C \(1\)
  4. D \(1.0 \times 10^{10}\)
Verified Solution

Answer & Solution

Correct Answer

(C) \(1\)

Step-by-step Solution

Detailed explanation

Given \(\Delta {H^o} = - 29.8\,kJ\,mo{l^{ - 1}}\) \(\Delta {S^o} = - 1.00\,kJ\,{K^{ - 1}}\) From the equation \(\Delta G = \Delta {H^o} - T\Delta {S^o} = - 29.8 - (298 \times - 0.100)\) \( = - 29.8 + 29.8 = 0\) Now, \(\Delta {G^o} = - 2.303\,RT\,\log \,{K_{eq}}\)…
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