Neco 2024 Chemistry Question 8
Practice objective / multiple choice question 8 from the 2024 Neco Chemistry examination.
A wastewater containing phenol at an initial concentration of 50 mg L^{-1} is treated by batch adsorption onto activated carbon. The adsorption follows the Langmuir isotherm \[ q_e = \frac{Q_{\max} K_L C_e}{1+K_L C_e} \] where \(Q_{\max}=250\) mg g^{-1} and \(K_L = 0.015\) L mg^{-1}. The reactor uses 2.0 g of carbon per litre of wastewater. Assuming a volume of 1 L, calculate the equilibrium phenol concentration \(C_e\) (in mg L^{-1}) after treatment. Solve for \(C_e\) and give your answer to one decimal place.
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About This Question
This is Neco 2024 Chemistry Question 8. It is one of the objective questions from the 2024 Neco Chemistry examination.
Difficulty level: Hard .
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