Table of Contents
- 1 What is the effect on the equilibrium if you increase the concentration of oxygen?
- 2 What causes increase in equilibrium concentration?
- 3 What causes equilibrium to shift?
- 4 Which change would not cause a shift in the equilibrium?
- 5 How does concentration affect the position of equilibrium?
- 6 What happens to the position of equilibrium when pressure changes?
What is the effect on the equilibrium if you increase the concentration of oxygen?
If the SO2 or O2 concentration was increased: Le Chatelier’s principle predicts that equilibrium will shift to decrease the concentration of reactants. Increasing the rate of the forward reaction will mean a decrease in reactants.
What causes increase in equilibrium concentration?
The only thing that changes an equilibrium constant is a change of temperature. That means that if you increase the pressure, the position of equilibrium will move in such a way as to decrease the pressure again – if that is possible. It can do this by favoring the reaction which produces the fewer molecules.
Which change will shift the equilibrium to the right?
For an exothermic reaction, heat is a product. Therefore, increasing the temperature will shift the equilibrium to the left, while decreasing the temperature will shift the equilibrium to the right.
How does equilibrium concentration change with temperature?
Increasing the temperature decreases the value of the equilibrium constant. If you increase the temperature, the position of equilibrium will move in such a way as to reduce the temperature again. It will do that by favouring the reaction which absorbs heat.
What causes equilibrium to shift?
According to Le Chatelier’s principle, adding additional reactant to a system will shift the equilibrium to the right, towards the side of the products. If we add additional product to a system, the equilibrium will shift to the left, in order to produce more reactants.
Which change would not cause a shift in the equilibrium?
Answers. Because there is an equal number of moles on both sides of the reaction, an increase in volume will have no effect on the equilibrium and thus there is no shift in the direction. Similarly, when you decrease the volume there is no effect on the equilibrium.
Which of the following factor does not affect the equilibrium?
change in pressure or concentration of reactants does not affect equilibrium.
How does increasing the pressure affect the reaction rate answers?
Pressure. If the pressure of gaseous reactants is increased, there are more reactant particles for a given volume. There will be more collisions and so the reaction rate is increased. The higher the pressure of reactants, the faster the rate of a reaction will be.
How does concentration affect the position of equilibrium?
The position of equilibrium is changed if you change the concentration of something present in the mixture. According to Le Chatelier’s Principle, the position of equilibrium moves in such a way as to tend to undo the change that you have made.
What happens to the position of equilibrium when pressure changes?
That is another way of saying that the position of equilibrium has moved to the right – exactly what Le Chatelier’s Principle predicts. The position of equilibrium moves so that the value of K p is kept constant. In this case, the position of equilibrium isn’t affected by a change of pressure.
Why does equilibrium move to the left in a forward reaction?
In the equilibrium we’ve just looked at, that will be the back reaction because the forward reaction is exothermic. So, according to Le Chatelier’s Principle the position of equilibrium will move to the left. Less hydrogen iodide will be formed, and the equilibrium mixture will contain more unreacted hydrogen and iodine.
Can the equilibrium constant change as you change the conditions?
Students often get confused about how it is possible for the position of equilibrium to change as you change the conditions of a reaction, although the equilibrium constant may remain the same. Be warned that this page assumes a good understanding of Le Chatelier’s Principle and how to write expressions for equilibrium constants.