Which of the following statements is true regarding the rate of reaction?
Practice Questions
Q1
Which of the following statements is true regarding the rate of reaction?
It is always constant
It decreases with time for a reactant
It increases with time for a product
Both B and C
Questions & Step-by-Step Solutions
Which of the following statements is true regarding the rate of reaction?
Correct Answer: The rate of reaction decreases with time for a reactant and increases with time for a product.
Step 1: Understand what a reaction rate is. It tells us how fast a chemical reaction happens.
Step 2: Identify the two main components in a reaction: reactants (the starting materials) and products (the substances formed).
Step 3: Realize that as reactants are used up in a reaction, their amount decreases over time.
Step 4: Note that as reactants decrease, the rate at which they react also decreases. This means the rate of reaction for reactants goes down over time.
Step 5: Conversely, as products are formed, their amount increases over time.
Step 6: Understand that as products accumulate, the rate of formation of products increases. This means the rate of reaction for products goes up over time.
Step 7: Conclude that the statement 'the rate of reaction decreases with time for a reactant and increases with time for a product' is true.
