Gce Model Questions Vol1 2019 Chemistry Question 46
Practice objective / multiple choice question 46 from the 2019 Gce Model Questions Vol1 Chemistry examination.
A wastewater treatment plant receives 2000 m³ day⁻¹ of effluent containing nitrate ions at a concentration of 30 mg L⁻¹. The plant uses a denitrification reactor where nitrate is reduced to nitrogen gas according to the stoichiometric equation \(2\;\text{NO}_3^- + 5\;\text{H}_2 \rightarrow \text{N}_2 + 6\;\text{H}_2\text{O}\). Pure hydrogen gas is supplied at 1.2 atm and 25 °C, and the reactor is operated at 1.5 times the stoichiometric hydrogen requirement to ensure complete denitrification. Calculate the volume of hydrogen gas (in m³, at the given conditions) that must be supplied each day.
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About This Question
This is Gce Model Questions Vol1 2019 Chemistry Question 46. It is one of the objective questions from the 2019 Gce Model Questions Vol1 Chemistry examination.
Difficulty level: Hard .
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