Answer to Question #70892 in General Chemistry for Allison H

Question

At constant pressure and temperature, which of the following statements is true for the reaction: N2O5 (s) ---> 2NO2 (g) + 1/2 O2 (g), delta Hr= 109.5 kJ/mol at 298 K.
A. Delta H is independent of the physical states of the reactants
B. Delta H=delta U
c. w=0
d. delta H< delta U
e. delta H> delta U

Answer 1

e. delta H > delta U