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Ethane is supplied with chlorine in a reactor, how many independent element balances can you write?(a) 1(b) 2(c) 3(d) 4This question was posed to me in an international level competition.I need to ask this question from Element Material Balances topic in section The Chemical Reaction Equation & Stoichometry, Material Balances for Processes Involving Reaction and Multiple Units of Basic Chemical Engineering

Answer»

The correct ANSWER is (c) 3

Easy explanation: The reaction is C2H6 + Cl2 -> C2H5Cl + HCl, Element balance C: 2F = 2xP, H: 6F = 5xP + (1 – x)P, CL: 2W = xP + (1 – x)P, => The equations are F = xP, 6F = 4xP + P, and 2W = P, which are INDEPENDENT.



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