Question

question 23 (0.5 points) which of the following conclusions concerning the concentration-time plot provided below is/are correct? 1. the concentration of substance d is decreasing over time. 2. the instantaneous reaction rate at point a is less than the instantaneous reaction rate at point b. 3. substance d is a product of the reaction.

Answer 1

The concentration of substance D is decreasing over time. The instantaneous reaction rate at point A is less than the instantaneous reaction rate at point B. Substance D is not a product of the reaction.

Step-by-step explanation:

1. The correct conclusion is that the concentration of substance D is decreasing over time. This is evident from the downward trend of the concentration-time plot for substance D.

2. The correct conclusion is that the instantaneous reaction rate at point A is less than the instantaneous reaction rate at point B. This can be observed from the steeper slope of the concentration-time plot at point B compared to point A.

3. The correct conclusion is that substance D is not a product of the reaction. The concentration-time plot only shows the concentrations of reactants and products, and substance D is not represented as a product.