Question

MasyChemistry Crap Review Constants Periodic Table The data below show the concentration of N20 versus time for the following reaction: You may want to reference (Pages 598-605, Section 14.5 while completing this problem Part A Determine the order of the reaction N205(g) + NO(g) + NO3(g) Time (s) (N20s] (M) 1.000 0.822 0.677 0.557 0.458 0.377 Request Answer Submit 0.310 0.255 0.210 Part B Complete previous parts) Part C Complete previous partis) Provide Feedback

Answer 1

from the given data :

let us check for first order :

for first order :

rate constant k = 1/t ln (Ao / At)

k1 = 1/25 ln (1.00/ 0.822)

    = 7.8 x 10^-3 s-1

k2 = 1/50 ln (1.00 / 0.677)

    = 7.8 x 10^-3 s-1

here all rate constants are same. so this is confirmed to be first order.

n = 1