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GATE Civil Engineering (CE) 2019 Shift 2 Solved Paper

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Question : 58

Total: 65

Raw municipal solid waste (MSW) collected from a city contains 70% decomposable material that can be converted to methane. The water content of the decomposable material is 35%. An elemental anlysis of the decomposable material yields the following mass percent.
C : H : O: N : other = 44 : 6 : 43 : 0.8 : 6.2
The methane production of the decomposable material is governed by the following stoichiometric relation

CaHbOcNd+nH2O→mCH4+sCO2+dNH3

Given atomic weights: C=12,H=1,O=16,N= The mass of methane produced (in grams, round off to 1 decimal place) per kg of raw MSW will be ____________

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