Methane and hydrogen sulfide react to form carbon disulfide and hydrogen, like t
ID: 570181 • Letter: M
Question
Methane and hydrogen sulfide react to form carbon disulfide and hydrogen, like this CH4(g)+ 2 H2S (g) CS2(g)+4H2(g) Suppose a mixture of CH4, H2S, CS2 and H2 has come to equilibrium in a closed 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. perturbation change in composition shift in equilibrium to the right The pressure of H2S wll ? B , to the left Some CH4 is removed The pressure of Cs2 will none to the right The pressure of CH4 ? to the left Some CS is added The pressure of H2S will? none to the right The volume of the vessel is The pressure of CH4wl ? reduced to the left The pressure of H2S will? noneExplanation / Answer
According to the Le Chatelier's principle, is the reaction at equillibrium is subjected to any change in the reaction conditions , it shifts in left or right direction , so that the equillibrium can be re-estabilished.
So here :
Some CH4 is removed :
The pressure of H2S will increase
The pressure of CS2 will decrease
Shift in equillibrium : to the left
Some CS2 is added :
The pressure of CH4 will increase
The pressure of H2S will increase
Shift in equillibrium : to the left
The volume of the vessel is reduced :
The pressure of CH4 will increase
The pressure of H2S will increase
Shift in equillibrium : to the left