Neco Model Questions Vol1 2019 Agricultural Science Question 23
Practice objective / multiple choice question 23 from the 2019 Neco Model Questions Vol1 Agricultural Science examination.
A batch of 500 kg fresh cassava roots contains 70 % moisture (wet basis). The drying process follows \(M(t)=M_{e}+(M_{0}-M_{e})e^{-kt}\), where \(M(t)\) is the moisture ratio (kg water per kg dry matter) at time \(t\) (hours), \(M_{e}=0.2\), and \(M_{0}\) corresponds to the initial moisture. The target moisture is 20 % (wet basis) after 8 hours. (a) Determine the drying constant \(k\) (h\(^{-1}\)). (b) Calculate the total weight of the cassava after drying.
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About This Question
This is Neco Model Questions Vol1 2019 Agricultural Science Question 23. It is one of the objective questions from the 2019 Neco Model Questions Vol1 Agricultural Science examination.
Difficulty level: Hard .
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