Waec Model Questions Vol1 2019 Agricultural Science Question 25
Practice objective / multiple choice question 25 from the 2019 Waec Model Questions Vol1 Agricultural Science examination.
Cassava chips exiting the dryer have a moisture content of 55% (wet basis). The dryer follows first‑order drying kinetics: dM/dt = -k(M - M_e), where M is the moisture content (% wet basis), M_e is the equilibrium moisture content (10%), and k = 0.3 h⁻¹. How long (in hours, to one decimal place) will it take to reduce the moisture content to 12%?
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About This Question
This is Waec Model Questions Vol1 2019 Agricultural Science Question 25. It is one of the objective questions from the 2019 Waec Model Questions Vol1 Agricultural Science examination.
Difficulty level: Hard .
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