The standard state Gibbs's energy change...

The standard state Gibbs's energy change for the isomerisation reaction `cis-2-pentencehArrtrans-2-pentence` is `-3.67 kJ mol^(-1)` at `400 K`. If more `trans-2-pentence` is added to the reaction vessel, then:

Equilibrium remains unaffected

Equilibrium is shifted in the forward direction

More cis-2-pentene is formed

Additional trans-2- pentene is formed

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