NEET Chemistry Chemical Kinetics Questions Solved


The high temperature ( 1200K) decomposition of CH3COOH(g) occurs as follows as per simultaneous 1st order reactions.

CH3COOH k1 CH4+ CO2

CH3COOH k2 CH2CO + H2O

What would be the % of CH4by mole in the product mixture (excludingCH3COOH) ?

(A) 50 k1k1+k2                                            

(B) 100 k1k1+k2

(C) 200 k1k1+k2                                           

(D) it depends on time

(A) nCH4+nCO2nCH2CO+nH2O=k1k2

nCH4+nCO2nCH4+nCO2+ nCH2CO+nH2O=k1k1+k22nCH4ntotal= k1k1+k2nCH4ntotal= k12k1+k2 nCH4ntotal×100=50k1k1+k2

 

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