101. Solving a chemistry problem
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101. Solving a chemistry problem
Calculate the standard heat (enthalpy) of formation of the compound, if its heat of combustion ΔH0comb is known (Table 2) at T=298 K and p=1.0133*I05 Pa. Heats of combustion of simple substances:
C O2 \u003d CO2 (g) - 393.79 * 106 J / kmol
H2 1 / 2O2 \u003d H2O (g) - 286.26 * 106 J / kmol
variant The reaction of formation of the compound ΔH0burn * 10-6,
J/kmol
7 5C 6H2 1/2O2=C5H12O(l) -3323.22
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