For a reaction A → B, if the rate of formation of B is 0.5 mol/L/s, what is the
Practice Questions
Q1
For a reaction A → B, if the rate of formation of B is 0.5 mol/L/s, what is the rate of disappearance of A?
0.5 mol/L/s
1.0 mol/L/s
0.25 mol/L/s
2.0 mol/L/s
Questions & Step-by-Step Solutions
For a reaction A → B, if the rate of formation of B is 0.5 mol/L/s, what is the rate of disappearance of A?
Step 1: Identify the reaction: A → B.
Step 2: Understand that the rate of formation of B is given as 0.5 mol/L/s.
Step 3: Recognize that for every 1 mole of A that disappears, 1 mole of B is formed (stoichiometric coefficients are both 1).
Step 4: Since the rate of formation of B is 0.5 mol/L/s, the rate of disappearance of A will be the same, but we need to multiply by the stoichiometric coefficient of A, which is 1.
Step 5: Calculate the rate of disappearance of A: 0.5 mol/L/s * 1 = 0.5 mol/L/s.
Step 6: Conclude that the rate of disappearance of A is 0.5 mol/L/s.
Rate of Reaction – The relationship between the rate of formation of products and the rate of disappearance of reactants in a chemical reaction.
Stoichiometry – The use of coefficients in a balanced chemical equation to relate the amounts of reactants and products.
