ΔU = qVversus ΔH = qPCH101 Fall 2013Boston UniversityBoston University Slideshow Title Goes HereΔU = qVversus ΔH = qPExothermic reaction that does work on surroundings will get hotter at constant volume.ΔU = qV versus ΔH = qP Copyright © 2013 Dan Dill [email protected] University Slideshow Title Goes HereΔU = qVversus ΔH = qPExothermic reaction that has work done on it will get less hot at constant volume.ΔU = qV versus ΔH = qP Copyright © 2013 Dan Dill [email protected] University Slideshow Title Goes HereΔU = qVversus ΔH = qPEndothermic reaction that has work done on it will get colder at constant volume.ΔU = qV versus ΔH = qP Copyright © 2013 Dan Dill [email protected] University Slideshow Title Goes HereΔU = qVversus ΔH = qPEndothermic reaction that does work on surroundings will get less cold at constant volume.ΔU = qV versus ΔH = qP Copyright © 2013 Dan Dill [email protected] University Slideshow Title Goes HereΔU = qVversus ΔH = qPIn a sealed, rigid container …constant V  no work possible ΔT is a measure of ΔU = qVIn an open container …constant P  work possible ΔT is a measure of ΔH = qPΔU = qV versus ΔH = qP Open container Gas moles |ΔTclose|> |ΔTopen|?Exothermic Formed Greater (hotter)Exothermic Consumed Smaller (less hot)Endothermic Formed Smaller (less cold)Endothermic Consumed Greater (colder)Copyright © 2013 Dan Dill [email protected] University Slideshow Title Goes HereΔU = qV versus ΔH = qP Copyright © 2013 Dan Dill