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Why the reaction mixture doesn't have 50 percents reactants and 50 percents products at equilibrium position?
Wiki User
∙ 11y ago
Chemical equilibrium occurs when the rate of the forward reaction is equal to the rate of the reverse reaction. Take this example:
2NO2(g) ↔
N2O4(g)
At this point of the reaction the rate of N2O4 produced from NO2 is the same as the rate of NO2 produced from N2O4. The key aspect to keep in mind is that the amounts (of moles) of products and reactants at equilibrium is not always 50%/50%. It is usually not.
Finding the amounts of products and reactants present during a reaction can be found using Q. Q is known as the reaction quotient. Q can be found like so:
Q=[products]
/[reactants]
reaction quotient =
concentrations of products (M) / concentrations of reactants
Q is used to find this ratio at a certain point in time during a reaction (not at
equlilibrium)
Most likely, you will be given Keq
, the equilibrium constant, for a reaction. The value tells you the concentrations of products/reactants at equilibrium. Comparing Q and Keq
will tell you whether a reaction is at equilibrium.
Not to get off topic, the answer is that equilibrium does not mean that the reaction mixture has 50% reactants and 50% products. Equilibrium means that the rate of the forward reaction equals the rate of the reverse reaction.
Wiki User
∙ 11y ago
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Which occurs faster at equilibrium the formation of products from reactants or reactants from the product?
At equilibrium, the formation of products from reactants will be faster.
What substances are present at equilibrium?
All reactants and products are present at equilibrium.
Which is a characteristic of chemical equilibrium but not physical equilibrium?
the reactants and products are different substances
A reaction in which all the reactants form only products is?
at equilibrium.
What information does an equilibrium constant give about a reaction?
It tells whether products or reactants are favored at equilibrium
Which occurs faster at equilibrium the formation of products from reactants or reactants from the product?
At equilibrium, the formation of products from reactants will be faster.
How does reaction quotient predicts the direction of a reaction?
The reaction quotient is the ratio of products to reactants not at equilibrium. If the system is at equilibrium then Q becomes Keq the equilibrium constant. Q = products/reactants If Q < Keq then there are more reactants then products so the system must shift toward the products to achieve equilibrium. If Q > Keq then there are more products than reactants and the system must shift toward the reactants to reach equilibrium.
How is the equilibrium of a reaction determined?
Molarity of products divided by reactants Keq=(products)/(reactants)
What describes the two phases is dynamic equilibrium?
reactants are turning into products. products are turning into reactants.
What substances are present at equilibrium?
All reactants and products are present at equilibrium.
Which is a characteristic of chemical equilibrium but not physical equilibrium?
the reactants and products are different substances
What does an equilibrium constant give about a reaction?
It tells whether products or reactants are favored at equilibrium
What information does equilibrium constant give?
It tells whether products or reactants are favored at equilibrium
When a reaction is at equilibrium is the equilibrium constant is equal to 1?
need not be..equilibrium constant is just a ratio of relative concentrations of products (multiplication of concentration in case of more than one products) to the concentration of reactants (multiplication of concentrations of reactants in case of more than one reactants)..the equilibrium concentration can be a very small number or can be a very number as well depending upon the relative concentrations of reactants and products..Unity equilibrium constants is just a special case which shows that the concentrations of products and reactants are equal..
When a reaction is at equilibrium increasing the temperature favors the reaction that what?
First read this to understand equilibrium: if the point of equilibrium moves to the left there will be more reactants than products. If the point of equilibrium moves to the right there will be more products than reactants. Le Chatelier's principle states that whatever you do to the reaction, the reaction will try and reverse the effects. Eg: heat it, and it will try and cool it down. ANSWER: If you increase the concentration of the reactants (left side), according to Le Chatelier's principle the reaction will try and get rid of the extra reactants, so it will decrease the concentration of reactants. This means the position of equilibrium will move to the right, so more products will be formed.
Why the reaction mixture does not have 50 percent reactants and 50 percent products at equilibrium position?
At a dynamic equilibrium, a closed system of chemicals in a reversible reaction have equal rates of its forward reaction and its backward reaction. However, they may not necessarily have equal composition of its reactants and products. This is because the composition of reactants and products is governed by other factors, such as the temperature, the initial concentrations of the reactants and the stoichiometric ratios of reactants and products.Therefore, while the rates of the forward and backward reactions are equal, the composition ratios may not have to be. However, it is important to note that the concentrations of reactants and products remain constant at dynamic equilibrium. They may not be at the same concentration, but they will remain constant when an equilibrium is established.I hope this helps! :)
A reaction in which all the reactants form only products is?
at equilibrium.
