73. Given the standard reaction enthalpies for the following reactions:
What is △Ho for the reaction: C3H8(g) + 5 O2(g) → 3 CO2(g) + 4 H2O(g)
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(A) 773.3 kJ
(B) -773.3 kJ
(C) -2043.9 kJ
(D) -2251.5 kJ
(E) -2527.5 kJ

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統計： A(1), B(1), C(10), D(3), E(0) #2241246