The gas phase reaction of carbon monoxide with nitrogen dioxide is believed to o
ID: 590414 • Letter: T
Question
The gas phase reaction of carbon monoxide with nitrogen dioxide is believed to occur by the following mechanism: tep 1 slow: 2NO2NO+No step 2 fast: NO3 CO> NO2 + CO2 (1) What is the equation for the overall reaction? Use the smallest integer coefficients possible. If a box is not needed, leave it blank. 1 (2) Which species acts as a catalyst? Enter formula. If none, leave box blank: (3) Which species acts as a reaction intermediate? Enter formula. If none, leave box blank: (4) Complete the rate law for the overall reaction that is consistent with this mechanism. (Use the form k[A]"[B]n... , where '1' is understood (so don't write it) for m, n etc.)Explanation / Answer
Q1
add all
2NO2 = NO3 + NO
NO3 + CO = NO2 + CO2
addition
2NO2 + NO3 + CO = NO2 + CO2+NO3 + NO
cancel commont erms
NO2 + CO = CO2+NO
Q2.
catalyst --> msut be NO2 since it is recovered at the end
Q3
intermediates must be produced and consumed
then
NO3 is produced, then consumed in step 2, this is intermediate
Q4
rate depends on slwoest step so
Rate = k*[NO2]^2