Click the DeltaH is an Extensive Property button within the activity, and analyz
ID: 858976 • Letter: C
Question
Click the DeltaH is an Extensive Property button within the activity, and analyze the relationship between the two reactions that are displayed. The reaction that was on the screen when you started and its derivative demonstrate that the change in enthalpy for a reaction, DeltaH, is an extensive property. Using this property, calculate the change in enthalpy for Reaction 2.
Reaction 1: C3H8(g)+5O2(g)-->3CO2(g)+4H2O(g), DeltaH1=2043 kJ
Reaction 2: 5C3H8(g)+25O2(g)-->15CO2(g)+20H2O(g), DetaH2=?
Explanation / Answer
DetaH2= 5* DetaH1
=5*2043
=10215 KJ