0
Why the reaction mixture does not have 50 percent reactant and 50 percent product at equilibrium position?
The ratio of product to reactant is dependant on many different things, from the reactants and products themselves to the pressure, temperature and other parameters of the reaction conditions such as the presence of a catalyst.
Some reactions are product favoured by nature and at room temperature and 100kPa will always lie at the product side of the equilibrium at STP. Others, like the Haber Process, are reactant favoured and, without manipulation, will produce very little product.
To maximise the product it must be made thermodynamically and entropically favourable for it to do so.
What else can I help you with?
How does an equilibrium reaction respond to the addiof extra reactant?
The concentration or activity of the product(s) will increase, and if there is at least one other reactant than the added one that is required for the completion of the reaction, the concentration of such an unadded reactant will decrease. (If there were no available unadded reactant, the reaction would not technically have been in equilibrium at the start, even though it may have reached a steady state that can persist for a long time in the absence of changed conditions.)
Are reactants a mixture or a compound?
Reactants can be a mixture, compounds, a mixture of compounds and also elements. It depends on the reaction. Air is a mixture and is often a reactant for example.
Why the reaction mixture does not have 50 percent reactants and 50 percent products at equilibrium position?
At equilibrium, the reaction mixture does not have 50 percent reactants and 50 percent products because the reaction has reached a dynamic state where the rates of the forward and reverse reactions are equal. This means that both reactants and products are continuously being formed and consumed at the same rate, leading to a constant concentration of reactants and products. The specific ratio of reactants to products at equilibrium is determined by the equilibrium constant for the reaction, which is unique to each reaction and depends on factors such as temperature and pressure.
What will happen to the reaction mixture at equilibruim if the volume of the container is increased?
The equilibrium will be re-established.
Why time recorded when half of sulphuric acid ran into reactant mixture?
The time is recorded when half of the sulfuric acid is added to the reactant mixture because it marks the halfway point of the reaction. This allows for better control of the reaction progress and timing of subsequent steps. It also helps to ensure that the reaction proceeds as planned and that the desired outcome is achieved.
How does an equilibrium reaction respond to the addiof extra reactant?
The concentration or activity of the product(s) will increase, and if there is at least one other reactant than the added one that is required for the completion of the reaction, the concentration of such an unadded reactant will decrease. (If there were no available unadded reactant, the reaction would not technically have been in equilibrium at the start, even though it may have reached a steady state that can persist for a long time in the absence of changed conditions.)
What does equilibrium and equilibrium mixture mean?
A quantity that characterizes the position of equilibrium for a reversible reaction; its magnitude is equal to the mass action expression at equilibrium. K varies with temperature.
How do solids affect equilibrium in a chemical reaction?
Solids do not affect the equilibrium of a chemical reaction because their concentration remains constant and does not change during the reaction. Only the concentrations of gases and dissolved substances in a reaction mixture can affect the equilibrium position.
What happens when a chemical change does not go to completion?
When a chemical change does not go to completion, some reactants may remain after the reaction has reached equilibrium. This can result in a mixture of both reactants and products in varying amounts. The extent to which a reaction goes to completion depends on factors such as reaction conditions, reactant concentrations, and the presence of catalysts.
Are reactants a mixture or a compound?
Reactants can be a mixture, compounds, a mixture of compounds and also elements. It depends on the reaction. Air is a mixture and is often a reactant for example.
Why the reaction mixture does not have 50 percent reactants and 50 percent products at equilibrium position?
At equilibrium, the reaction mixture does not have 50 percent reactants and 50 percent products because the reaction has reached a dynamic state where the rates of the forward and reverse reactions are equal. This means that both reactants and products are continuously being formed and consumed at the same rate, leading to a constant concentration of reactants and products. The specific ratio of reactants to products at equilibrium is determined by the equilibrium constant for the reaction, which is unique to each reaction and depends on factors such as temperature and pressure.
What is the difference between dissociation constant and equilibrium constant?
The dissociation constant describes the extent to which a compound breaks apart into its ions in a solution, specifically for weak acids or bases. The equilibrium constant, on the other hand, describes the ratio of product concentrations to reactant concentrations at equilibrium for a chemical reaction.
How would the equilibrium concentration of H2O be affected by adding a catalyst to the mixture?
Adding a catalyst to the mixture would not affect the equilibrium concentration of H2O. A catalyst speeds up the rate of the forward and reverse reactions equally, without changing the position of the equilibrium. This means that the equilibrium concentration of H2O would not be affected by the presence of a catalyst.
Why the reaction mixture doesn't have 50 percents reactants and 50 percents products at equilibrium position?
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 reactantsQ is used to find this ratio at a certain point in time during a reaction (not atequlilibrium)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 Keqwill 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.
What will happen to the reaction mixture at equilibruim if the volume of the container is increased?
The equilibrium will be re-established.
When the limiting reactant in a chemical reaction is completely used the?
When the limiting reactant in a chemical reaction is completely used, the reaction stops because there are no more reactants available to continue producing products. At this point, any excess reactants or products may still be present in the reaction mixture. The amount of product formed will be determined by the amount of limiting reactant that was originally present.
What happens if you add energy to either side of a dynamic equilibrium?
Energy is always conserved in a chemical reaction. If heat of reaction is positive, the mixture gets heated and may require external cooling to continue the reaction in the forward direction. If the reaction is endothermic, i.e. heat of reaction is negative, the mixture gets cooled and may need external supply of heat to maintain the reaction in forward direction. When the reaction is at an equilibrium, the heat of reaction is either zero or the mixture has attained an equilibrium with some definite ratios of the reaction products. The total energy of the system is conserved.
