25. Solving a chemistry problem
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1. Calculate the standard heat of formation of a compound from simple substances, if its heat of combustion is known at T = 298K and a pressure of 1.0133 * 105 Pa.
Assume that combustion products are CO2 (g), H2O (l) and N2 (g) oxides. Heats of combustion of simple substances:
C graphite O2 \u003d CO2 (g) - 393.795 * 103 J / mol;
H2 1 / 2O2 \u003d H2O (l) -286.043 * 103 J / mol.
Variant Substance ΔНsgor*10-3, J/mol
1 C2H5NO2 (l)
glycocol -981.852
Assume that combustion products are CO2 (g), H2O (l) and N2 (g) oxides. Heats of combustion of simple substances:
C graphite O2 \u003d CO2 (g) - 393.795 * 103 J / mol;
H2 1 / 2O2 \u003d H2O (l) -286.043 * 103 J / mol.
Variant Substance ΔНsgor*10-3, J/mol
1 C2H5NO2 (l)
glycocol -981.852
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- Content type File
- Content description 16,11 kB
- Added to the site 04.05.2023
Additional description
If you do not open the file - install the RAR archiver. Inside the archive you will find a solution in Word format.
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25. Solving a chemistry problem
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