ch8q3


CompoundHfo
PC3(g)-305.93
P4O10(s)-2965.54
and given
PC 3(g) + C 2(g) PC 5(g) ; Ho = -82.41
PC 3(g) + (1/2)O 2(g) C 3PO (g) ; Ho = -277.9
calculate H for the reaction
P4O10(s) + 6 PC 5(g) 10 C 3PO (g)

Choose your answer in scientific notation, e.g., ±1.000x10±00
. x 10{ }

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