Project ForgeChemical Reaction Engineering
Reaction Kinetics
GATE 2016
Hard
HI decomposes via 2HI⇌H2+I2, forward activation energy=184000 J/mol, R=8.314 J/mol·K. The ratio of the forward reaction rate at 600K to that at 550K, rounded to 1 decimal place, is
28.6(± 0.5 accepted)
Explanation
k600/k550=exp[−Ea/R(1/600−1/550)]=exp[(184000/8.314)×0.00015152]=exp(3.353)=28.6.
Source: GATE CH 2016 (2016)
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