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

आदर्श व्यवहार मानकर, निम्नलिखित अभिक्रिया के लिए \(25^{\circ} C\) पर \(\log K\) का परिमाण \(x \times 10^{-1}\) है। \(x\) का मान है..............(पूर्णांक उत्तर) \(3\, HC \equiv CH _{( g )} \rightleftharpoons C _{6} H _{6(\ell)}\) [दिया है : \(\Delta_{f} Go ( HC \equiv CH )=-2.04 \times 10^{5} \,J\, mol ^{-1}\); \(\Delta_{f} G ^{\circ}\left( C _{6} H _{6}\right)=-1.24 \times 10^{5} \,J\, mol ^{-1} ; \,R =8.314 \,J\) \(\left.K ^{-1} mol ^{-1}\right]\)

  1. A \(855\)
  2. B \(952\)
  3. C \(412\)
  4. D \(1054\)
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Answer & Solution

Correct Answer

(A) \(855\)

Step-by-step Solution

Detailed explanation

\(3 HC \equiv CH _{( g )} \rightarrow C _{6} H _{6}(\ell): \Delta G ^{0}=- RT \ln k\) \(\Delta G _{ f }^{0}-2.04 \times 10^{5} \,\frac{ J }{ mol }-1.24 \times 10^{5}\, \,J / mol\)…
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