What does KC depend on?

Table of Contents

Kc depends on the rate constants which in turn depend on the reaction (Ea) and temperature. No units on Kc. Pure solids and pure liquids are excluded from Kc. A catalyst does not change the equilibrium concentrations, so it does not change Kc.

What does the KC tell you?

1 : The equilibrium constant Kc is a constant which represents how far the reaction will proceed at a given temperature. 8.2. 2 : When Kc is greater than 1, products exceed reactants (at equilibrium). When much greater than 1, the reaction goes almost to completion.

Does pressure affect KC?

Kc and Kp are. constants for a reaction. They dont get affected by changing volume or pressure.

Is water included in KC?

Here, however, you are considering the equilibrium constant of an esterification so you need to use Kc because water is not in excess so cannot be treated as constant! Hence the expression for Kc must include the water!

How do you find K in math?

Since k is constant (the same for every point), we can find k when given any point by dividing the y-coordinate by the x-coordinate. For example, if y varies directly as x, and y = 6 when x = 2, the constant of variation is k = = 3.

What is the value of KC?

for example – is the value of Kc is 2, it would mean that the molar concentration of reactants is 1/2 the concentration of products. In this case though the value of Kc is greater than 1, the reactants are still present in considerable amount.

Why does pressure not affect KC?

The equilibrium constant, Kc is the ratio of the rate constants, so only variables that affect the rate constants can affect Kc. Pressure doesn’t show in any of these relationships. It may also be useful to think about different ways pressure can be changed. The volume of the reaction can be changed.

Does temperature affect KC?

Kc is temperature dependent, so changing the temperature will change its value. The type of change depends on whether it’s an exothermic or endothermic reaction. If the reaction is exothermic, increasing the temperature will reduce Kc and vice-verca.

Does KC depend on pressure?

Kc and Kp are. constants for a reaction. They dont get affected by changing volume or pressure. They tell you the value of Q at the equilibrium condition.

Does KC depend on temperature?

3) Kc does depend on temperature. ⇒ If the Kc value is large (Kc >> 1), the equilibrium lies to the right and the reaction mixture contains mostly products. ⇒ If the Kc value is small (Kc <<1), the equilibrium lies to the left and the reaction mixture contains mostly reactants.