Question detail
On a graph of product volume against time, what does a steeper initial gradient show?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Rate of reaction
Question
- A. a faster initial rate of product formation
- B. a lower final yield only
- C. a slower initial reaction
- D. no product is being formed
Answer
a faster initial rate of product formation. A steeper gradient means more product is formed each second.
Explanation
a faster initial rate of product formation is correct because graph gradient represents rate. A steeper line means the product volume increases more quickly over the same time interval.
Common mistake
Confusing Rate Calculation
Students often confuse the formula for calculating the mean rate of reaction by using the quantity of reactant instead of the quantity of product formed.
Always ensure to use the quantity of product formed divided by the time taken when calculating the mean rate of reaction.
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