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What is overpotential deposition?
Overpotential deposition is a phenomenon where a reactant is electrochemically deposited on an electrode at a potential higher than its thermodynamic equilibrium potential. This can lead to the formation of a thicker or different kind of deposit than expected based on thermodynamics. It is often used in electroplating processes to control the deposition characteristics.
After a chemical reaction starts when will a chemical reaction end?
When the limiting reactant is completely used up. A limiting reactant is the reactant that determines the amount of product. To determine this use the balanced chemical reaction with the masses of the reactants to determine the moles of product formed. The reactant that forms the least amount of product will be the limiting reactant.
Which is the limiting reactant when 3.00 moles of calcium are reacted with 8.00 moles of water in the following equation?
To determine the limiting reactant, you must compare the moles of each reactant to the stoichiometry of the reaction. The balanced equation is essential to determine the ratio of moles needed for the reaction. In this case, 3.00 moles of calcium and 8.00 moles of water are given, and you can find which reactant limits the reaction by finding out which reactant would require more moles for complete reaction based on the stoichiometry.
When aluminum oxide Al2O3 is formed as the only product from aluminum and molecular oxygen the sum of the coefficients on the reactant side is?
The chemical reaction for the formation of aluminum oxide (Al2O3) from aluminum and molecular oxygen is: 4Al + 3O2 -> 2Al2O3 The sum of the coefficients on the reactant side is 7 (4 + 3 = 7).
What is the formulae for lithium carbonate heat?
The formula for the heat of formation of lithium carbonate (Li2CO3) can be determined using the enthalpies of formation of the individual elements (Li, C, and O) involved in the reaction. The heat of formation of a compound is the difference in enthalpy between the product compound and the reactant elements under standard conditions.
If a reactant rather than a product would be colored could an equilibrium constant be calculated for a specific reaction stoichiometry?
Yes, you can calculate an equilibrium constant for a reaction involving a colored reactant. As long as the reaction is at equilibrium, the equilibrium constant can be determined using the concentrations of reactants and products. The color of a reactant does not prevent the calculation of an equilibrium constant.
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 will happen when a reactant is added to a system?
The equilibrium is not maintained.
What happens when reactant is added to a system at equilibrium?
The equilibrium of the system will be upset.
What will happen when a reactant is added to a system at equilibrium?
The equilibrium of the system will be upset.
Hat will happen when a reactant is added to a system at equilibrium?
The concentrations of reactants and products are modified.
What is the effect of adding more water to the following equilibrium reaction?
Equilibrium is pushed to the reactant side
What will be the consequences of adding or removing a reactant or aproduct from a reaction that is at dynamic equilibrium?
if reaction is at equ. then adding product will cause reaction to proceed forward and product will increase and removing product will do the same while removing reactant will cause reactn 2 proced bakward and reactant will increase and adding product wl do the same it is in accordnc wth LeChateliars principle
What is a following characterizes a reaction at equilibrium?
At equilibrium, the rate of the forward reaction is equal to the rate of the reverse reaction. The concentrations of reactants and products remain constant over time. The equilibrium constant, which is the ratio of product concentrations to reactant concentrations, is constant at a given temperature.
How does an increase in temperature affect the equilibrium shift to the right in a chemical reaction?
An increase in temperature typically causes the equilibrium of a chemical reaction to shift to the right, favoring the formation of products. This is because an increase in temperature provides more energy for the reactant molecules to overcome the activation energy barrier, leading to more successful collisions and increased product formation.
Removing an reactant from a system at equilibrium will?
If reactants are removed (thus taken away from the left side) the equilibrium moves 'to counteract' the reason of disturbance: removing is countered by forming back:So this eq'b'm. will move to the LEFT (
What does a very high value of Keq indicate?
A very high value of Keq indicates that the reaction strongly favors the formation of products over reactants at equilibrium. This suggests that the reaction is proceeding nearly to completion and that a higher concentration of products is present compared to reactants at equilibrium.
