Gce Model Questions Vol1 2025 Chemistry Question 47
Practice objective / multiple choice question 47 from the 2025 Gce Model Questions Vol1 Chemistry examination.
A factory discharges 200 kg of pollutant X into a river each day. The river flow is (5.0\times10^{6}\) L per day. Pollutant X undergoes first‑order decay with a half‑life of 3 days. \(\text{(i)}\) Calculate the steady‑state concentration of X in the river (in mg L⁻¹). \(\text{(ii)}\) After the factory stops discharging, how many days will it take for the concentration to fall below 0.02 mg L⁻¹?
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About This Question
This is Gce Model Questions Vol1 2025 Chemistry Question 47. It is one of the objective questions from the 2025 Gce Model Questions Vol1 Chemistry examination.
Difficulty level: Hard .
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