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When you write an equilibrium constant expression how do you decide what goes on in the numerator and in the denominator?
In an equilibrium constant expression, the numerator consists of the concentrations (or partial pressures) of the products raised to the power of their stoichiometric coefficients from the balanced chemical equation. Conversely, the denominator contains the concentrations (or partial pressures) of the reactants, also raised to the power of their respective stoichiometric coefficients. This arrangement reflects the principle of the law of mass action, which states that at equilibrium, the ratio of product concentrations to reactant concentrations remains constant at a given temperature.
What else can I help you with?
Is universal gas constant equal equilibrium constant?
No
What does the negative sign in the dissociation constant mean?
equilibrium constant
Do you have an example of constant?
Constant TermDefinition of Constant TermThe Constant Term in an expression or equation has a fixed value and does not contain variables.Examples of Constant TermThe constant term in the equation 6x2 - 3x + 5 is 5.Solved Example on Constant TermChoose the value of the constant term in the expression,- 12x2 + 5x +1.Choices:A. 5B. 1C. 0D. - 12Correct Answer: BSolution:Step 1: - 12x2 + 5x +1. [Original expression.]Step 2: The Constant Term in an algebraic expression or equation has a fixed value and does not contain variables.Step 3: Therefore, 1 is the constant term in the expression, - 12x2 + 5x +1.There You Go Baby ;]
What is the part of an expression that has no variable?
The constant. For instance, if you had 2x +5, +5 would be your constant, because no matter what number you substitute in for x, the last term of the expression will be +5. It is independent of the x and y value.
What is the constant variable in Avogadro's law?
The question is about an oxymoronic expression. A constant cannot be a variable and a variable cannot be a constant!
What is the significance of Kc in equilibrium expression?
Kc is the equilibrium constant.
The equilibrium constant for the reaction below is 0.49 At equilibrium O2 equals 0.11 and N2 equals 0.15 What is the equilibrium concentration of NO?
To find the equilibrium concentration of NO, first calculate the equilibrium constant expression using the given concentrations of O2 and N2. Then, rearrange the equilibrium constant expression to solve for the concentration of NO. Finally, substitute the values of O2 and N2 concentrations into the rearranged expression to find the equilibrium concentration of NO.
What is the correct form for the equilibrium constant expression for this reaction H2g plus F2g 2 HFg?
The correct form for the equilibrium constant expression for this reaction is Kc = [HF]^2 / ([H2] * [F2]), where the square brackets denote molar concentrations of each species at equilibrium.
How can one determine the equilibrium constant for a chemical reaction?
To determine the equilibrium constant for a chemical reaction, you can measure the concentrations of the reactants and products at equilibrium and use these values in the equilibrium expression. The equilibrium constant (K) is calculated by dividing the concentration of the products raised to their stoichiometric coefficients by the concentration of the reactants raised to their stoichiometric coefficients.
How can one determine the equilibrium concentration in a chemical reaction?
To determine the equilibrium concentration in a chemical reaction, one can use the equilibrium constant, which is a ratio of the concentrations of products to reactants at equilibrium. By knowing the initial concentrations and the stoichiometry of the reaction, one can calculate the equilibrium concentrations using the equilibrium constant expression.
How can you use a balanced chemical equation to write an equilibrium constant expression?
To write an equilibrium constant expression using a balanced chemical equation, you need to identify the reactants and products involved in the equilibrium and write the expression as a ratio of the products raised to their stoichiometric coefficients divided by the reactants raised to their stoichiometric coefficients. The general format is [products]/[reactants]. The coefficients from the balanced equation become the exponents in the expression.
Why doesnt the solid appear in the Ksp expression?
In the Ksp expression, only the concentration of the dissolved ions is included because the solid is considered to be in equilibrium with the ions in solution. Therefore, its concentration remains constant and is not included in the expression. Including the solid in the Ksp expression would not affect the equilibrium constant value.
What is the expression for force constant?
The expression for the force constant (k) in Hooke's Law is given by the equation F = kx, where F is the force applied, k is the force constant, and x is the displacement from equilibrium. The force constant is a measure of the stiffness of a spring or a bond.
How can one determine the equilibrium concentration of FeSCN2 in a chemical reaction?
To determine the equilibrium concentration of FeSCN2 in a chemical reaction, you can use the equilibrium constant expression and the initial concentrations of the reactants. By setting up an ICE table (Initial, Change, Equilibrium), you can calculate the equilibrium concentration of FeSCN2 based on the stoichiometry of the reaction and the equilibrium constant value.
What does it mean when a reaction has a large value of KMeq?
If a reaction creates far more products than reactants, the numerator is large and the denominator is small. That means Keq will be large. So when Keq is large, equilibrium is to the far right of the reaction. A reaction that goes to completion would have an infinite Keq, since the concentration of reactants goes all the way to zero.If few products form, and many reactants remain, the numerator is small and the denominator is large. So a small Keq means that equilibrium is far to the left.you're welcome.
What is the expression that represents the equilibrium constant expression for H2SO3?
H2SO3 will ionize to H+ + HSO3-. The Keq = [H+][HSO3-]/[H2SO3]HSO3- will ionize to H+ + SO3^2-. The Keq = [H+][SO^2-]/[HSO3-] ... very small value
Which species are left out from the Keq expression?
The substances left out from the equilibrium constant expression (Keq) are usually pure solids, pure liquids, and solvents. These do not affect the equilibrium position because their concentrations remain constant. Only species that are present in aqueous or gaseous form and participate in the reaction are included in the Keq expression.
