Igcse Model Questions Vol1 2022 Chemistry Question 38
Practice objective / multiple choice question 38 from the 2022 Igcse Model Questions Vol1 Chemistry examination.
A chemical plant discharges 200 kg of pollutant X into a river each day. The river flow is \(5.0 \times 10^{6}\) L day\(^{-1}\) and the volume of the river segment under consideration is \(5.0 \times 10^{5}\) L. Pollutant X degrades in water by a first‑order reaction with rate constant \(k = 0.15\) day\(^{-1}\). Assuming complete mixing, determine the steady‑state concentration of X in the river (in mg L\(^{-1}\)). The environmental quality standard for X is 0.05 mg L\(^{-1}\). State whether the standard is exceeded and give the concentration value (to one decimal place).
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About This Question
This is Igcse Model Questions Vol1 2022 Chemistry Question 38. It is one of the objective questions from the 2022 Igcse Model Questions Vol1 Chemistry examination.
Difficulty level: Hard .
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