After equilibrium has been established the partial pressures of e2 os increased, and The new equilibrium of ae2 would remain the same.
The reason behind this is that equilibrium is a state of balance between the forward and reverse reactions. If the partial pressure of e2 is increased, more molecules will react in the forward direction and more molecules will be produced in the reverse direction. The increase in the partial pressure of e2 will cause the forward and reverse reactions to proceed at a faster rate. As a result, the reaction rates of the two reactions will balance out, so the equilibrium of ae2 will remain the same.
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