Reaction Rate

[Jaira_Murphy_2D]

Given a table of rates and concentrations, when you find the rate constant k, is it the same k for all of the other concentrations?

[josie 1C]

i believe so, as long as it's all the same products and reactants

[RachelCheung1A]

Yes as long as it is the same formula and under same conditions (ex. temp)

[George Ghaly 2L]

k is a specific for a certain temperature, so if the reaction takes place at the specified temperature then the k would be the same.

[Noah Fox 1E]

Wait, I thought initial concentration would be included especially for second order reactions

[Yiting_Gong_4L]

It is the same k as long as you use the same products and reactants because the numbers they give are under the same temp.

[204929947]

when given a table, you can use any reaction and the values to kind K, right?

[CristinaMorales1F]

What is a reaction rate and how does it relate to the rate law?

[lukezhang2C]

Yes, the K value should be the same for all since you need to use the different concentrations and initial rates in order to find K in the first place.

[lukezhang2C]

What is a reaction rate and how does it relate to the rate law?

The reaction rate is the rate of which the reaction proceeds (in M/s) and is related to the rate law as the rate law is used to calculate the initial rates of the reaction. In a problem typically we would use the reaction rate to find the K value, or any missing values from the rate law equation.

[lukezhang2C]

when given a table, you can use any reaction and the values to kind K, right?

Yes, you should be able to use any of the values given to find k as long as they correspond to one another. For example, using random concentrations for an initial rate which was found using other concentrations would not yield a correct answer.