For the reaction 2 A(g) + B(g) → 3 C(g), b. when A is decreasing at a rate of 0.100 M/s, how fast is B decreasing? How fast is C increasing?

Key Concepts

Stoichiometry

Stoichiometry is the quantitative relationship between reactants and products in a chemical reaction. It allows us to determine how the amounts of substances change during the reaction based on their coefficients in the balanced equation. In this case, the coefficients indicate that for every 2 moles of A consumed, 1 mole of B is consumed and 3 moles of C are produced.

Rate of Reaction

The rate of reaction refers to the speed at which reactants are converted into products. It can be expressed in terms of the change in concentration of a reactant or product over time. Understanding the rates of change for each substance in the reaction is essential for determining how fast B decreases and C increases when A is decreasing.

Concentration Change

Concentration change describes how the concentration of a substance varies over time during a chemical reaction. In this scenario, knowing the rate at which A is decreasing allows us to calculate the corresponding rates for B and C using the stoichiometric ratios. This concept is crucial for applying the rates of change to find the rates of other substances involved in the reaction.