The formation enthalpy of CO at 3.5MPa and 800K
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I now know the standard pressure and the enthalpy of formation of CO at 800K. I don’t know how to find it at 3.5MPa and 800K? Could you please give me some advice on the influence of pressure on the enthalpy of formation?
C＋0.5O2------CO The following is calculated using the SRK model. At standard pressure, the heat enthalpy of CO at 800K is -3406.2kJ/kg 3.5MPa, and the heat enthalpy of CO at 800K is -3403.3kJ/kg. The enthalpy of O2 under the two conditions is also very close. Therefore, for gases, pressure has little effect on the enthalpy. Correspondingly, it has no effect on the heat of formation of CO.
2# robinchenhc Thank you for your answer, I learned an idea.