Table of Contents
In which direction will the position of the equilibrium?
The position of equilibrium moves to the left. This is essentially what happens if one of the products is removed as soon as it is formed. If, for example, C is removed in this way, the position of equilibrium would move to the right to replace it.
How do you determine the direction of equilibrium shift?
Q can be used to determine which direction a reaction will shift to reach equilibrium. If K > Q, a reaction will proceed forward, converting reactants into products. If K < Q, the reaction will proceed in the reverse direction, converting products into reactants. If Q = K then the system is already at equilibrium.
In what direction was the equilibrium shifts by the addition of HCL?
If hydrochloric acid was added to the equilibrium mixture, both hydrogen ions (H +) and chloride ions (Cl -) are being added. Hydrogen ions are on the right hand side of the equilibrium, therefore the equilibrium will shift to the left hand side to compensate, resulting in a higher concentration of reactants.
What can be used to predict the direction a reaction will take to restore equilibrium?
Comparing Q and K for a given reaction tells us which direction the reaction needs to go to reach equilibrium.
What information does the equilibrium constant give 1 point?
The value of the equilibrium constant shows the relative amounts or concentrations of the reactants and products.
Which change causes the equilibrium to shift?
Increasing the temperature causes the equilibrium to shift to the right toward a higher concentration of vapor, but, if the system is maintained at that higher temperature, equilibrium will again be established. It is possible to predict how a particular stress or change in conditions will affect an equilibrium.
What happens to equilibrium when volume is increased?
When there is a decrease in volume, the equilibrium will shift to favor the direction that produces fewer moles of gas. When there is an increase in volume, the equilibrium will shift to favor the direction that produces more moles of gas.
Why does equilibrium constant change with temperature?
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.
What does equilibrium constant tell us?
The magnitude of the equilibrium constant, K, indicates the extent to which a reaction will proceed: If K is a large number, it means that the equilibrium concentration of the products is large. If K is a small number, it means that the equilibrium concentration of the reactants is large.
Why does pressure not affect equilibrium constant?
Equilibrium constants aren’t changed if you change the pressure of the system. The only thing that changes an equilibrium constant is a change of temperature. If there are the same number of molecules on each side of the equation, then a change of pressure makes no difference to the position of equilibrium.
What is the equilibrium constant dependent on?
The value of the equilibrium constant for any reaction is only determined by experiment. It does, however, depend on the temperature of the reaction. This is because equilibrium is defined as a condition resulting from the rates of forward and reverse reactions being equal.