Consider the following two reactions:
A (arrow) 2B Delta H rxn = 456.7 kJ/mol
A (arrow) C Delta H rxn = -22.1kJ/mol
Determine the enthalpy change for the process: 2B (arrow) C
A) 478.8 kJ/mol
B) -478.8 kJ/mol
C) -434.6 kJ/mol
D) 434.6 kJ/mol
E) More information is needed to solve the problem