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Q#1 GATE CH 2021 NAT +2 marks -0.66 marks

The combustion of carbon monoxide is carried out in a closed, rigid and insulated vessel. 1 mol of CO, 0.5 mol of O2 and 2 mol of N2 are taken initially at 1 bar and 298 K, and the combustion is carried out to completion.

The standard molar internal energy change of reaction (ΔuoR)for the

combustion of carbon monoxide at 298 K = –282 kJ mol–1. At constant pressure, the molar heat capacities of N2 and CO2 are 33.314 J mol–1 K–1 and 58.314 J mol–1 K–1, respectively. Assume the heat capacities to be

independent of temperature, and the gases are ideal. Take R = 8.314 J mol–1 K–1.

The final pressure in the vessel at the completion of the reaction

Is_______bar (round off to 1 decimal place).

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