The reaction 2NO + O2 - 2NO2 is second order in concentration of NO and first order in concentration of O2. Calculate the rate constant for this reaction at 25 degrees Celsius, if the rate is 1.5 M*s^-1 when the concentration of NO is 0.60 M and the concentration of O2 is 0.80 M.

Question

The reaction 2NO + O2 -> 2NO2 is second order in concentration of NO and first order in concentration of O2. Calculate the rate constant for this reaction at 25 degrees Celsius, if the rate is 1.5 M*s^-1 when the concentration of NO is 0.60 M and the concentration of O2 is 0.80 M.

jfraser · Answer

what's the general equation for any rate law?

anonymous · Answer

k[A] ?

jfraser · Answer

and [B], and [C], if necessary

jfraser · Answer

in this case, it's$$R = k[NO]^2*[O_2]$$

jfraser · Answer

you're given values of R, [NO], and [O2]. plug and solve for k

anonymous · Answer

R=1.5? [NO]=0.60? and [O2]=0.80?

anonymous · Answer

and you just fill that into the equation and solve for k?

jfraser · Answer

those are the pieces

anonymous · Answer

okay thank you!

jfraser · Answer

yw