Description
SPP2601 MINOR TEST ASSESSMENT 3 2026
DUE 12 AUGUST 2026
QUESTION 1: Adsorption Study
1.1 State and discuss at least five (5) limitations of Langmuir Adsorption Equation
The Langmuir adsorption isotherm, useful for describing many adsorption systems
1. Assumption of homogeneous surface (Study Guide, p. 123)
The Langmuir model assumes that all adsorption sites on the surface are identical and
have equal energy. In reality, solid surfaces are heterogeneous with sites of varying
energy levels. This leads to deviations from the ideal Langmuir behaviour, particularly at












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