Gce Model Questions Vol1 2019 Mathematics Question 13
Practice objective / multiple choice question 13 from the 2019 Gce Model Questions Vol1 Mathematics examination.
The time \(t\) (in minutes) for a reaction varies directly as the square of the concentration \(c\) (in mol\,L\(^{-1}\)) and inversely as the temperature \(T\) (in K). When \(c=0.2\) mol L\(^{-1}\) and \(T=300\) K, the reaction takes \(5\) minutes. (a) Determine the constant of variation \(k\). (b) If the concentration is increased to \(0.3\) mol L\(^{-1}\) and we wish the reaction to still take \(5\) minutes, what temperature must be used? Give your answer in kelvin.
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About This Question
This is Gce Model Questions Vol1 2019 Mathematics Question 13. It is one of the objective questions from the 2019 Gce Model Questions Vol1 Mathematics examination.
Difficulty level: Medium .
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