반응속도. 2NO + O2 → 2NO2

속도법칙. 2NO + O2 → 2NO2

The following data were collected for

the rate of disappearance of NO in the reaction:

2NO(g) + O2(g) → 2NO2(g)

Experiment - [NO] (M) - [O2] (M) - Initial Rate (M/s)

1 - 0.0126 - 0.0125 - 1.41×10^(-2)

2 - 0.0252 - 0.0125 - 5.64×10^(-2)

3 - 0.0252 - 0.0250 - 1.13×10^(-1)

(d) What is the rate of disappearance of NO

when [NO] = 0.0750 M and [O2] = 0.0100 M?

------------------------

(a) Determine the rate law for the reaction

and state the units of the rate constant.

rate = k [NO]^2 [O2]

[ https://ywpop.blogspot.com/2025/01/2no-o2-2no2.html ]

(d) What is the rate of disappearance of NO

when [NO] = 0.0750 M and [O2] = 0.0100 M?

rate = (1/2) (Δ[NO] / Δt)

( 참고 https://ywpop.tistory.com/2668 )

where (Δ[NO] / Δt) is the rate of disappearance of NO

[참고]

rate = –(1/2) (Δ[NO] / Δt) 인데,

소모, 소멸(disappearance)이 –의 의미이므로, –를 생략.

rate = k [NO]^2 [O2]

= (7.11×10^3) (0.0750^2) (0.0100)

= 0.400 M/s

Δ[NO] / Δt = 2 × rate

= 2 × (0.400 M/s)

= 0.800 M/s

답: 0.800 M/s

[키워드] 반응속도 2NO(g) + O2(g) → 2NO2(g) 기준, 속도법칙 2NO(g) + O2(g) → 2NO2(g) 기준