The reaction NO(g) O 3 NO 2 (g) O 2 (g) was studied in 2 experim...

The reaction Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â NO(g) + O3 -> NO2(g) + O2(g) was studied in 2 experiments under pseudo-first order conditions. a) [O3]...

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Chemistry

The reaction
Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â NO(g) + O₃ -> NO₂(g) +O₂(g)
was studied in 2 experiments under pseudo-first orderconditions.
a) [O₃] = 1x10¹⁴ molecules/cc inexcess
the [NO] varied as followsÂ Â {Note, time is inmsec (1 msec = 1x10^-3 s)!}
Â Â Â Â Â Â Â Â Â Â Â time(msec)Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â NO (molecules/cc)
Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 0Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 6x10⁸Â Â
Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 100Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 5x10⁸Â Â
Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 500Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 2.4x10⁸
Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 700Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 1.7x10⁸
Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 1000Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 9.9x10⁷
b) [NO] = 2x10¹⁴ molecules/cc inexcessÂ Â Â Â Â
Â Â Â Â Â Â Â Â Â Â Â time(msec)Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â O₃ (molecules/cc)
Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 0Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 1x10¹⁰
Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 50Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 8.4x10⁹Â Â Â Â Â Â Â Â Â Â Â
Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 100Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 7x10⁹
Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 200Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 4.9x10⁹
Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 300Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 3.4x10⁹
a) what is the order of reaction with respect toNO?
b) what is the order of reaction with respect toO_3?
c) what is the overall rate law?
d) what is the pseudo-first order rate from experimenta); what overall rate coefficient does this give? (overall rateshould be in cm³ molecule^-1s^-1.)
e) what is the pseudo-first order rate from experimentb); what overall rate coefficient does this give?

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4.5 Ratings (956 Votes)

rate law rate K O3xNOy If the concentration of one relative reactant remains constant because it is supplied in great excess its concentration can be absorbed at the expressed constant rate obtaining the pseudo first order reaction constant because in fact it depends on the same concentration of See Answer

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