Carbon monoxide heat capacity ratio

The increase in the temperature ratio comes about because nitrogen and carbon monoxide are only slightly dissociated, even at the 5515°K. temperature, while the water molecule would be more than 19% dissociated at 3120°K., and the hydrogen molecules would also be more than 20% dissociated. The ideal chemical reaction for generation of high temperature, then, is between unstable species to form very stable products (i.e., undissociated) that have a small heat capacity. 

In operation, the gases enter at diametrically opposite sides of the cylindrical combustion chamber. It is here that much carbonyl fluoride is formed and much heat is liberated. If flow rates are too high, the heat of the reaction may ignite copper in contact with fluorine. The capacity of the apparatus to produce trifluoromethyl hypo-fluorite appears to be limited by the rate of removal of heat from this reactor. A mixing chamber made from copper, nickel. Monel metal, or other fluorine-resistant metal should be satisfactory, provided that adequate provision is made for removal of heat. Suitable rates of flow for the apparatus described are fluorine, about 5 l./hour carbon monoxide, about 2 to 2.3 l./hour. The limiting rates have not been established. It is important that the ratio by volume of fluorine to carbon monoxide be somewhat more than 2 1. 

Design heat release or maximum capacity is demonstrated to confirm that the process burner will provide the heat release required. This test point is often the condition at which the process burner will operate for most of its lifetime. Therefore, documentation of flame dimensions and pollutant emissions at these conditions is important. Carbon monoxide (CO) break is a condition that is achieved by increasing the fuel flow rate until the furnace is almost depleted of excess air. This is conducted to simulate how a burner will respond in a situation where excess air suddenly decreases. Turndown ratio or minimum heat release is demonstrated by reducing the heat release of the burner. These points are repeated if more than one fuel composition is to be tested. Certain fuels such as start-up fuels are only used during light-off and warm-up periods and therefore do not require testing at every condition. 

The feed stream to the reactor is based on a 2 1 molar flow rate ratio of hydrogen to carbon monoxide. This corresponds to an inlet CO mass fraction of a, inlet = 0.875. The heat capacity of the mixture for this specific problem reduces to... 

Determine the equilibrium composition that is achieved at 300 bar and 700 K when the initial mole ratio of hydrogen to carbon monoxide is 2. You may use standard enthalpy and Gibbs free energy of formation data. For purposes of this problem you should not neglect the variation of the standard heat of reaction with temperature. You may assume ideal solution behavior but not ideal gas behavior. You may also use a generalized fugacity coefficient chart based on the principle of corresponding states as well as the heat capacity data listed below. 

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