GASES Solving for a gaseous reactant Jennifer Com tion of hydrocarbons such as m

Question

GASES Solving for a gaseous reactant Jennifer Com tion of hydrocarbons such as methane (CH4) produces carbon dioxide, a "greenhouse gas." Greenhouse gases in the Earth's atmosphere can trap the Sun's heat, raising the average temperature of the Earth. For this reason there has been a great deal of international discussion about whether to regulate the production of carbon dioxide. 1. Write a balanced chemical equation, including physical state symbols, for the combustion of gaseous methane into gaseous carbon dioxide and gaseous water Ar 2. Suppose 0.330 kg of methane are burned in air at a pressure of exactly 1 atm and a temperature of 14.0 °C. Calculate the volume of carbon dioxide gas that is produced. Be sure your answer has the correct number of significant digits Explanation Check

Explanation / Answer

CH4(g) + O2 (g) ------------------> CO2(g) + 2H2O(g)

no of moles of CH4 = W/G.M.Wt

                                   = 330/16   = 20.625moles

1 mole of CH4 combustion with O2 to gives 1 mole of Co2

20.625 moles of CH4 combustion with O2 to gives 20.625 moles of Co2

n = 20.625 moles

T = 14+273   = 287K

P = 1atm

PV = nRT

V = nRT/P

    = 20.625*0.0821*287/1   = 486L    = 4.86*10^2L >>>answer

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