Using Lee Chateliers Principle to predict the result of changing co suppose a mi
ID: 492670 • Letter: U
Question
Using Lee Chateliers Principle to predict the result of changing co suppose a mixture of H2S, O2, so2 and H2O has come to equilibrium in a dosed reaction vessel. Predict what change, if any the perturbations in the table below will cause in the composition of the mixture in the vessel. Also decide whether the equilibrium shifts to the right or left. change in composition shift in equilibrium to the right The pressure of H:s will to the left some on is removed. The pressure of so, will (none) to the right The pressure of H:s will to the left Some hizo is added. The pressure of o: wil The volume of the vessel is The pressure of so: wil The pressure of H o willExplanation / Answer
The pressure of H2S will increase
The pressure of SO2 will decrease
The pressure of H2S will increase
The pressure of O2 will increases
the volume of the vessel is increased or
(pressure is decreased)
The pressure of SO2 will decrease
The pressure of H2O will decrease
In a equilibrium reaction if some reactant is removed reaction tries to form more reactants by consuming the products that is shifting the reaction to reactants (left) side.
Thus H2S pressure will increase and SO2 pressure will decrease to attain equilibrium,
In a equilibrium reaction if some product is added equilibrium shifts to the reactant side to consume the excess product to attain equilibrium.
All are gases in the reaction and number of moles of reactants are greater than products.
Increase in the volume means decrease in pressure, shifts the reaction to more number of moles that is reactants side.
Perturbation Change in composition shift in equilibrium Some O2 is removedThe pressure of H2S will increase
The pressure of SO2 will decrease
to the left Some H2O is addedThe pressure of H2S will increase
The pressure of O2 will increases
to the leftthe volume of the vessel is increased or
(pressure is decreased)
The pressure of SO2 will decrease
The pressure of H2O will decrease
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