Question: 2a. From the equilibrium adsorption data, plot the adsorption isotherm models- Langmuir and Freundlich using their empirical linear expressions (20 marks). 2b. From your analysis

2a. From the equilibrium adsorption data, plot the adsorption isotherm models- Langmuir and Freundlich using their empirical linear expressions (20 marks).

2b. From your analysis determine the isotherm model which best describes the equilibrium adsorption data (7 marks)

2c. From the best model identified in question 2b. above, describe the possible mechanism of adsorption according to the model prediction (15 marks).

Table 1: Gold concentration before and after contact with adsorbents after 48 hours

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