The standard enthalpies of formation of gaseous propyne (C3H4), propylene (C3H6), and propane (C3H8) are +185.4, +20.4, and -103.8 kJ/mol, respectively.

asked by @madisonf34 • over 1 year ago • Chemistry • 5 pts

Calculate the heat evolved per mole on combustion of each substance to yield CO2(g) and H2O(g).

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