- #1
Not a Wrench
- 22
- 1
Homework Statement
Homework Equations
Δ[A]/aΔt = Δ[ B]/bΔt
The Attempt at a Solution
Δ[ I]/3Δt = Δ[H]/2Δt = 7.8E-4. What exactly am I supposed to do for this?
I don't understand what you calculate here, and the number you get there (which is not the answer) doesn't agree with the number you put into the form (which is also not the answer).Not a Wrench said:Δ/3Δt = Δ[H]/2Δt = 7.8E-4
What I did in part A was divide 7.8E-4 by 3. However I am unsure what this is fundamentally doing apparently as I can not understand how to get part B. Do I divide 7.8E-4 by 2?mfb said:I don't understand what you calculate here, and the number you get there (which is not the answer) doesn't agree with the number you put into the form (which is also not the answer).
Part B works in the same way as part A.
That is not true. -Δ[I-]/Δt = 7.8e-4 M/s (don't forget the units), as you were told. Given this, how would you apply Δ[ I-]/3Δt = Δ[H+]/2Δt to answer the question?Not a Wrench said:Δ[ I]/3Δt = Δ[H]/2Δt = 7.8E-4.
The formula for calculating average reaction rate is Δ[A]/aΔt = Δ[B]/bΔt, where Δ[A] and Δ[B] represent the change in concentration of reactants A and B, respectively, over a specific time interval (Δt). The coefficients a and b represent the stoichiometric coefficients of the reactants in the balanced chemical equation.
The term "a" in the formula represents the stoichiometric coefficient of the reactant A in the balanced chemical equation. It indicates the ratio at which reactant A is consumed or produced in the reaction.
The units of average reaction rate are expressed as mol/L·s or M/s. This indicates the change in concentration of reactants or products per unit time. For example, if the average reaction rate is 0.5 mol/L·s, it means that the concentration of the reactants or products is changing by 0.5 mol/L every second.
Yes, the average reaction rate can be negative. A negative average reaction rate indicates that the concentration of a reactant is decreasing over time, while the concentration of a product is increasing. This can occur during a reversible reaction, where the reactants are being consumed to produce products, but the products are also being consumed to produce reactants.
Temperature can significantly affect the average reaction rate. In general, an increase in temperature will result in an increase in the average reaction rate, as it provides more energy for the reactant molecules to collide and react. However, this relationship is not always linear and can vary depending on the specific reaction and reactants involved.