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In a batch process, 70 Kg of H2O and 10 Kg of NaOH and some other reactants enters the vessel, if 100 Kg of the product leaves the vessel, what is the percentage of H2O in the product?

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In a batch process, 70 Kg of H2O and 10 Kg of NaOH and some other reactants enters the vessel, if 100 Kg of the product leaves the vessel, what is the percentage of H2O in the product?

(a) 10%

(b) 30%

(c) 70%

(d) 100%

The question was posed to me during an online exam.

This question is from Material Balances for Batch and Semi-Batch Processes in chapter Introduction to Material Balances of Basic Chemical Engineering

1 Answer

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Best answer
The correct choice is (c) 70%

The best explanation: Percentage of H2O in the product = (70/100)*100 = 70%.

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