Choose the true statement from the following regarding batch distillation: a) The exact concentration of feed and final waste are not always used in numerical integration. We just need to use the values in the xy data that are closest to the given values b) In the material balance, the average waste concentration is used because the waste’s concentration changes over time c) The numerical integration must be performed with equal intervals hence tedious data processing must be done to be accurate d) In the material balance, the average distillate concentration is used because the concentration of the distillate at a given time is variable and the final distillate is a mixture of all the collected distillate

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