Acetylene (C2H2) gas undergoes combustion in excess oxygen to generate the gaseous products, carbon dioxide and water.

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Acetylene (C2H2) gas undergoes combustion
in excess oxygen to generate the gaseous products, carbon
dioxide and water. Given ΔH°f[CO2(g)] =
–393.5 kJ/mol, ΔH°f[H2O(g)] = –241.8
kJ/mol, and ΔH°f[C2H2(g)] =
226.6 kJ/mol, how much energy is released (kJ) when 10.5 moles of
acetylene is burned?
A
2,510.8 kJ
B
26,400 kJ
C
13,200 kJ
D
52,700 kJ