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Grade 11IIT JEE Entrance Exam

For an isomerisation reaction A ⇔ B, the temperature dependence of equilibrium constant is given by ln K = 4 – (2000/T). The value of ∆Sº at 400 K is:
(A) 4R
(B) 5R
(C) 400R
(D) 2000R

Profile image of Scott Fearless
6 Years agoGrade 11
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1 Answer

Profile image of Vikas TU
ApprovedApproved Tutor Answer6 Years ago
Dear student 
Variation of k with temperature is given by 
log K = del S /R  - del H /RT 
= 4.0 - 2000/T 
On comparison 
delS /R = 4 
del S = 4R   

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