Solid carbon dioxide (dry ice) may be used for refrigeration. Some of this carbon dioxide is obtained as a by-product when hydrogen is produced from methane in the following reaction.
CH4 + 2H2O - - - - - > CO2 + 4H2
(a) What mass of CO2 should be obtained from 1250 g of methane?
(b) If the actual yield obtained is 3000 g then what is the percentage yield?
(Ans: a = 3437.5 g b = 87.3 %)
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Producer gas, mixture of flammable gases (principally carbon monoxide and hydrogen) and nonflammable gases (mainly nitrogen and carbon dioxide) made by the partial combustion of carbonaceous substances, usually coal, in an atmosphere of air and steam. Producer gas has lower heating value than other gaseous fuels, but it can be manufactured with relatively simple equipment; it is used mainly as a fuel in large industrial furnaces.
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