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In heterogeneous catalytic reactions, if the transport of reactant A from the bulk fluid to the external surface of the catalyst is the slowest step, the rate of reaction can be expressed as: (CAb is the bulk concentration of A in the fluid, and CAₛ is the concentration of A at the catalyst surface)
Proportional to (CAb – CAₛ) with a mass-transfer coefficient kC
Proportional to CAₛ only, independent of bulk concentration
Independent of both bulk and surface concentrations
Proportional to CAb only, independent of surface concentration
Proportional to (CAb – CAₛ) with a mass-transfer coefficient kC
Practice and solve "In heterogeneous catalytic reactions, if the transport of reactant A from the bulk fluid to the exte..." for Technical Knowledge - HRRLAssistant Engineer Chemical 2026. The correct answer is Option A: Proportional to (CAb – CAₛ) with a mass-transfer coefficient kC. Detailed step-by-step solution, conceptual clarity, and formulas on Examoogle.
Practice and solve "In heterogeneous catalytic reactions, if the transport of reactant A from the bulk fluid to the exte..." for Technical Knowledge - HRRLAssistant Engineer Chemical 2026. The correct answer is Option A: Proportional to (CAb – CAₛ) with a mass-transfer coefficient kC. Detailed step-by-step solution, conceptual clarity, and formulas on Examoogle.