Re: Why does only Temp affect K?
Kc is dependent on temperature
. A change in T would change the value of Kc, and this value will scale with respect to what kind of reaction is occurring (endothermic/exothermic).
Why is KC only dependent on temperature?
Increasing the temperature decreases the value of the equilibrium constant
. Where the forward reaction is endothermic, increasing the temperature increases 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.
Why does the equilibrium constant only change with temperature?
This is because equilibrium is defined as a condition resulting from the rates of forward and reverse reactions being equal. If the temperature changes, the corresponding change in
those reaction rates
will alter the equilibrium constant.
Does temperature affect KC?
The only thing which can change the value of Kc for a given reaction is
a change in temperature
. The position of equilibrium, however, can change without a change in the value of Kc. The effect of a change of temperature on a reaction will depend on whether the forward reaction is exothermic or endothermic.
Why KC is not affected by concentration?
⇒ Catalysts lower Ea for the reaction, so a catalyst decreases the amount of time taken to reach equilibrium for both the forward and reverse reactions. ⇒
The catalyst does not affect the equilibrium concentrations
of reactants and products in the equilibrium mixture; thus, the Kc value does not change.
What is the relationship between Q and KC?
Q deals with the the reaction not at equilibrium and it can tell what direction the reaction will proceed as it moves toward equilibrium. When Q>K, -If a reaction at equilibrium is subject to an increase in pressure, the For an exothermic reaction, heat is a product. Therefore, The equilibrium constant (K 3 : The only thing which can change the value of Kc for a given reaction is Ans: Kp and Kc are the equilibrium constants of the gaseous mixture in a reversible reaction and they are directly proportional to each other related by the equation ⇒ Equilibrium constants are If the value of K is greater than 1, If volume were decreased, the rates of the forward and reverse reaction will each increase due to higher concentration. If the exponents in the rate laws are different, the amount of increase for each will be different. Although the rates change, the rate constants do not, so Qc and Kc are calculate the
reaction favors reverse
. When Q What happens to KC when pressure is increased Labster?
system responds to decrease this pressure by favouring the side with the smaller number of molecules
. … exothermic reaction. The equilibrium will shift to the left, in favour of reactants, and Kc will decrease. What are reaction rates dependent on?
Reactant concentration, the physical state of the reactants, and surface area, temperature, and the presence of a catalyst
are the four main factors that affect reaction rate. How does temperature affect equilibrium exothermic?
increasing the temperature will shift the equilibrium to the left
, while decreasing the temperature will shift the equilibrium to the right. Does equilibrium constant depend on catalyst?
eq
) depends on the nature of the reactants and products, the temperature,
and the pressure
(particularly in reactions involving gases). … Because a catalyst accelerates the rates of the forward and reverse reactions by the same factor, it does not change the value of k
f
/k
r
. What are the effects of KC?
a change in temperature
. The position of equilibrium, however, can change without a change in the value of Kc. Is KP equal to KC?
Kp = KC(RT)Δng
. Is KC affected by pressure?
not changed
if you change the pressure of the system. 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. What does it mean if KC is greater than 1?
the products in the reaction are favored
. If the value of K is less than 1, the reactants in the reaction are favored. If K is equal to 1, neither reactants nor products are favored. Is KC affected by volume?
Kc doesn't change either
. How is KC different from QC?
same
way, but Qc is used to determine which direction a reaction will proceed, while Kc is the equilibrium constant (the ratio of the concentrations of products and reactants when the reaction is at equilibrium).
