Data in the table below were collected at 540 K for the following reaction: CO (g) + NO2(g) → CO2(g) + NO (g) Initial concentration (mol/dm3) Initial rate (mol/dm3·h) 3,4 x 10–8 6,8 x 10–8 1,7 x 10–8 6,8 x 10–8 10,2 x 10–8 Exp [CO] 1 5,1 x 10–4 2 5,1 x 10–4 3 5,1 x 10–4 4 1,0 x 10–3 5 1,5 x 10–3 [NO2] 0,35 x 10–4 0,70 x 10–4 0,18 x 10–4 0,35 x 10–4 0,35 x 10–4 (a) What is the reaction order with respect to each reactant? (b) What is the overall reaction order? (c) Write the rate law for the reaction.
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Data in the table below were collected at 540 K for the following reaction:
CO (g) + NO2(g) → CO2(g) + NO (g) Initial concentration (mol/dm3)
Initial rate (mol/dm3·h)
3,4 x 10–8 6,8 x 10–8 1,7 x 10–8 6,8 x 10–8 10,2 x 10–8
Exp [CO]
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1 5,1 x 10–4
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2 5,1 x 10–4
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3 5,1 x 10–4
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4 1,0 x 10–3
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5 1,5 x 10–3
[NO2] 0,35 x 10–4 0,70 x 10–4 0,18 x 10–4 0,35 x 10–4 0,35 x 10–4
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(a) What is the reaction order with respect to each reactant?
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(b) What is the overall reaction order?
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(c) Write the rate law for the reaction.
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(d) Calculate the rate constant, giving the correct units for k.
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(e) Without doing a calculation, say how the value of k will change if the reaction is carried out at a temperature higher than 540 K?
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(f) What equation would you use, and what additional information would be required, in order to calculate the value of k at a temperature different from 540 K?
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