4. In a gas system at a temperature of 530 K and a pressure of 1 atm, the reaction CH3CHO H2 = C2H5OH occurs. The standard molar enthalpy of the reaction at this temperature is: -71.89 kJ/mol, and the standard molar entropy of the reaction is: -121.25 J/(mol•K). Find the maximum possible yield of ethanol at this temperature.

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