Answer to Question #93411 in Physical Chemistry for Atul

Question #93411
Rate of formation of So3 according to the reaction 2So2 + O2 gives 2So3 is 1.6×10^-3 kg/min hence rate at which So2 reacts as.
1
Expert's answer
2019-08-28T04:27:00-0400

2SO2+O22SO32 SO_2+O_2 \to 2 SO_3

By rate law kinetics:

12d[SO2]dt=12d[SO3]dt-\frac{1}{2} \frac{d[SO_2]}{dt}=\frac{1}{2} \frac{d[SO_3]}{dt}

hence,d[SO2]dt- \frac{d[SO_2]}{dt} == d[SO3]dt\frac{d[SO_3]}{dt}

so,rate at which SO2SO_2 reacts=(-( rate at which SO3SO_3 forms.))

=1.6×103 kg/min=-1.6 \times 10^{-3} \space kg /min (negative sign represents the diminishing concentration of SO2SO_2 )


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