Rate of Disappearance?

[super frank]

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Let's say you have the reaction: 2NO (g) + O2 (g) --> 2NO2(g).

If calculating the rate of disappearance of NO2 over time, would you use the coefficient in the equation (-d[NO]/2dt or -d[NO]/dt)? Or would you only use NO's coefficient when calculating the rate for O2?

 

[DAT Destroyer]

Let's say you have the reaction: 2NO (g) + O2 (g) --> 2NO2(g).

If calculating the rate of disappearance of NO2 over time, would you use the coefficient in the equation (-d[NO]/2dt or -d[NO]/dt)? Or would you only use NO's coefficient when calculating the rate for O2?

If you are not comparing it to anything use -d[NO]/dt). This is general form of the rate law.
Hope this helps

Dr. Romano