(b) At the start of a certain reaction, only reactants are present; no products have been formed. What is the value of Qc at this point in the reaction?

Video transcript

Hello everyone. Today, we have the following problem. Initially, equal amounts of reactant and products are added to a reaction vessel. Which of the following is correct for the Q C of the reaction. So our Q C is essentially going to be a ratio of the products for the concentration of the products divided by the concentration of our reactant. And so if we examine each of the answer choices, we'll be able to determine which is the correct one. So if we look at a a here says That our QC is greater than one. If this were the case, this would be representative that the products would be greater than the reactant or their concentrations would be. And we already said it's equal amounts. So it can't be one, cannot be greater than the other. And the same will actually apply for B it cannot be less than one because that would imply that the reactant there are more reactive than products. However, if we look at C, which says that the Q C is equal to one, this is essentially saying that we have an equal concentration of products and react ints. And so with that we can conclude that seat is going to be our answer. And with that, we've answered the question overall, I hope this helped. And until next time.