Equilibrium - Result Question 31

####33. Standard Gibb’s free energy change for isomerization reaction

[1995]

cis- 2 - pentene trans-2-pentene

is 3.67kJ/mol at 400K. 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

Show Answer

Solution:

  1. (a) 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.


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