16The Stefan–Boltzmann law states that radiant energy emitted is proportional to:AThe fourth power of absolute temperatureBThe square of temperatureCThe square root of temperatureDTemperatureView AnswerDiscussWorkspaceReportSaveEasy
17Multiple-effect evaporators are used to:AIncrease pressureBMix solidsCImprove steam economyDCool liquidsView AnswerDiscussWorkspaceReportSaveEasy
18LMTD is used in the design of:AReactorsBHeat exchangersCPumpsDDistillation columnsView AnswerDiscussWorkspaceReportSaveEasy