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The overall Energy balance of a column is given by

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The overall Energy balance of a column is given by

(a) V1HV1 = L0HL0 + DHD + QC

(b) QC = V1HV1

(c) V1HV1 = DHD + H0

(d) Can change with models

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This is a very interesting question from Mccabe Thiele Diagram-Fundamentals topic in chapter Key Fractionation Concepts of Distillation Design

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Correct option is (a) V1HV1 = L0HL0 + DHD + QC

Easy explanation: The energy balance equation is given as V1HV1 = L0HL0 + DHD + QC, where Qc is the heat provided through reboiler.

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