Gce Model Questions Vol1 2018 Agricultural Science Question 50
Practice objective / multiple choice question 50 from the 2018 Gce Model Questions Vol1 Agricultural Science examination.
A batch of cassava chips initially has a moisture content of 45 % (wet basis). The desired final moisture content is 12 % (wet basis). The drying follows the exponential model \(M(t) = M_{eq} + (M_{0} - M_{eq})e^{-kt}\), where \(M(t)\) is the moisture content at time \(t\) (hours), \(M_{eq}\) is the equilibrium moisture (assumed 10 % wb), \(M_{0}\) is the initial moisture, and \(k\) is the drying constant. After 5 hours of drying, the measured moisture content is 20 % wb.\n\n(a) Determine the drying constant \(k\).\n(b) Calculate the time required to reach the target moisture content of 12 % wb.\n(c) If the initial wet mass of the chips is 200 kg, compute the total amount of water removed during drying.
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This is Gce Model Questions Vol1 2018 Agricultural Science Question 50. It is one of the objective questions from the 2018 Gce Model Questions Vol1 Agricultural Science examination.
Difficulty level: Hard .
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