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A solid-oxide fuel cell is fed with carbon monoxide and reacts with air to produce CO2. This reaction will produce 2 electrons which are used to power an electric circuit external to the fuel cell. The reaction equation is shown below: 2CO(g) + O2(g) -> 2CO2(g) ΔHr° = -565.96 kJ/mol This reaction does not occur for other types of fuel cells which use a catalyst, such as polymerelectrolyte membrane or phosphoric-acid fuel cells. The presence of carbon monoxide on the anode side of these types of fuel cells will cause catalyst poisoning, reducing the efficiency and voltage of the fuel cell. Determine the rate of enthalpy change for a carbon dioxide production rate of 208 mol/hr. The extent of the reaction occurring in the fuel cell can be obtained by the following equation: where:
Which of the following statements is/are correct with respect to carbon monoxide? a) Carbon monoxide is a permanent pollutant. b) Natural processes convert carbon monoxide to other compounds that are not harmful.
Pentane is burnt to produce carbon dioxide 40% of which can be converted into carbon monoxide, how much Butane must be burnt to produce 176 grams of carbon monoxide?
Estimate the diffusion coefficient of carbon monoxide through air in which the mole fractions of each constituents are O 2 = 0.18 N 2 = 0.72 CO = 0.10 The gas mixture is at 300 K and 2 atmosphere total pressure. The diffusivity values are D CO = 18.5 * 10 -6 m2/s at 273 K, 1 atm D CN = 19.2 * 10 -6 m2/s at 288 K, 1 atm The subscripts C is carbon monoxide, O is oxygen and N is nitrogen
Select the correct statements about snakes : A. Only four types of poisonous snakes are found in our country. B. Cobra is a poisonous variety of snakes. C. A poisonous snake has four hollow teeth (fangs) through which the poison enters the body of a person when the snake bites D. Medicine for snake bites is made from the snake's poison.
Read the given statement(s) and conclusions carefully and select which of the conclusions logically follow(s) from the statement(s). Statements: I. All snakes are poisonous. II. All poisonous are reptiles. Conclusions: 1. All snakes are reptiles. 2. Some reptiles are poisonous.
An Assertion (A) and a Reason (R) are given below. Assertion (A): It causes death when inhaled carbon monoxide. Reason (R): Carbon monoxide is added to hemoglobin. choose the right option. A. A is correct but R is false. B. A is false but R is correct. C. Both A and R are correct and R is the proper interpretation of A. D. Both A and R are correct but R is not a proper interpretation of A.
Directions : For the Assertion (A) and Reason (R) below, choose the correct alternative Assertion (A) : Carbon monoxide when inhaled causes death. Reason (R) : Carbon monoxide combines with haemoglobin.
Carbon monoxide is a poisonous gas which, when inhaled, replaces the oxygen in the blood stream so that the body’s metabolism can not function correctly.
In the carbonation of a soft drink, the total quantity of carbon dioxide required is the equivalent of 3 volumes of gas to one volume of water at 0⁰C and atmospheric pressure. Calculate (i) the mass fraction and (ii) the mole fraction of the CO2 in the drink, ignoring all components other than CO2 and water. Basis 1 m3 of water = 1000 kg Volume of carbon dioxide added = 3 m3 From the gas equation, pV = nRT 1 x 3 = n x 0.08206 x 273 n = 0.134 mole. Molecular weight of carbon dioxide = 44 And so weight of carbon dioxide added = 0.134 x 44 = 5.9 kg