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26/09/2021 11:44 am
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Standard Gibb’s free energy change for isomerization reaction
cis-2-pentene ⇌ trans-2-pentene
is -3.67 kJ/mol at 400 K. If more trans-2- pentene is added to the reaction vessel, then
(a) more cis-2-pentene is formed
(b) equilibrium remains unaffected
(c) additional trans-2-pentene is formed
(d) equilibrium is shifted in forward direction
1 Answer
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26/09/2021 11:46 am
Correct answer: (a) more cis-2-pentene is formed
Explanation:
If more trans-2-pentene is added, then its concentration in right hand side will increase. But in order to maintain the K constant, concentration of cis-2-pentene will also increase. Therefore more cis-2- pentene will be formed.