Provide the expressions for rate of disappearance of reactants and rate of appearance of products for the following reaction. All right. So here we're going to say that our average rate, so we're going to say our reactants are these two here. So it'd be change in the concentration of C3H7-O divided by. Remember here the coefficient for reactants is represented by the variable A. So for this first reactant, it's a two, so it'd be two times change in time.
Since it's a reactant, it's disappearing, so it would be a negative sign here that equals negative for the other reactant. So change in O2 / 9 because the coefficient is 9 times change in time and these all equal the products because their products are being made. So this is plus change in concentration of CO2 divided by coefficient of 6. So that's six times.
Change in time equals plus for the other product being formed. Change in H2O water divided by 8 times. Change in time so this would represent each one of their average or general rate expressions and how they be equal to one another. So this would be your final answer.