Posted by Violet on Thursday, June 30, 2011 at 11:11pm.
A chemist does a reaction rate analysis on the following reaction:
2CO (g) + O2 (g) → 2CO2 (g)
She collects the following data:
Trial Initial Concentration of
CO (M) Initial Concentration
of O2 (M) Instantaneous
Reaction Rate (M/s)
1 0.150 0.150 0.113
2 0.300 0.150 0.226
3 0.300 0.300 0.904
What is the rate equation for this reaction?
Chemistry - DrBob222, Friday, July 1, 2011 at 6:20pm
The rate equation is rate = k(CO)^x(O2)^y.
Divide rate 2 by rate 1.
0.226/0.113 = 2 and
2 = (0.300)x(0.150)y/(0.150)x(0.150)y
Note that 0.150y cancels with 0.150y and leaves just
2= (2)x and x must be 1.
Do the same thing for rate 3 divided by rate 2 and determine y. You should get 2. Then substitute x = 1 and y = 2 into any of the three rate equations to determine k, then write the equation. If you get stuck, post your work in a new post at the top of the page (this post is close to the bottom when I read it) and I can help you through it.
Answer This Question
More Related Questions
- Chemistry - The reaction of nitrogen dioxide with fluorine generates nitryl ...
- Chemistry - The reaction between NO (nitric oxide) and oxygen is a key step in ...
- chemistry - 1) The activation energy of a certain reaction is 35.3 kJ/mol. At ...
- Chemistry - For the following reaction 2NO2 -> 2NO +O2 is second order ...
- chem - Butadiene can undergo the following reaction To form a dimer(two ...
- Science work - A reaction is thought to be second order with respect to the ...
- Chemistry - 1. The following data was collected for the reaction between ...
- Chemistry - Okay, this is a question in several parts that really stumps me: ...
- Chemistry - Chemistry HELP - Rates of reaction, redox reactions? 10 points? An ...
- Chemistry - The following initial rate data apply to the reaction F2(g) + 2Cl2O(...