2. The molar heat capacities of carbon monoxide, chlorine and phosgene are equal
CpCO=28.41 4.10*10-3 T –0.46*105*T-2 J/(mol*deg),
CpCl2 =36.69 1.05*10-3 T – 2.52⋅105 T -2 J/(mol*deg),
CpCOCl2=67.16 12.11*10-3 T –9.03⋅105*T -2 J/(mol*deg).
The standard heats of formation of carbon monoxide and phosgene at 298 K are, respectively, −110.5 and −223.0 kJ/mol. Calculate the thermal effect at constant volume for the reaction CO C12 = COC12 at a temperature of 600 K.

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