For a first order reaction involving decomposition of N2O5, following information is available 2N2O5(g) xrightarrow[]4NO2(g)+O2(g), Rate =k[N2O5] N2O5(g) xrightarrow[]2NO2(g)+(1/2)O2(g), Rate =k[N2O5] Which of following expression is true?

Question

For a first order reaction involving decomposition of N2O5, following information is available 2N2O5(g) xrightarrow[]4NO2(g)+O2(g), Rate =k[N2O5] N2O5(g) xrightarrow[]2NO2(g)+(1/2)O2(g), Rate =k[N2O5] Which of following expression is true? (A)  k=k'  (B)  k'=2k  (C)  k'=(1/2)k  (D)  k>k'

Tardigrade Admin · Accepted Answer

2N2O5(g) xrightarrow[]4NO2+O2(g) Rate =-(1/2)([N2O5]/dt)=k[N2O5] or Rate =-(d[N2O5]/dt)=2k[N2O5] For N2O5 xrightarrow[]2NO2+(1/2)O2 -(d[N2O5]/dt)=k'[N2O5] or Rate =-(d[N2O5]/dt)=k'[N2O5] Since, rate must be .same, k' = 2k

Q. For a first order reaction involving decomposition of $N_{2} O_{5},$ following information is available $2 N_{2} O_{5} (g) 4 N O_{2} (g) + O_{2} (g),$ Rate $= k [N_{2} O_{5}]$ $N_{2} O_{5} (g) 2 N O_{2} (g) + \frac{1}{2} O_{2} (g),$ Rate $= k [N_{2} O_{5}]$ Which of following expression is true?

$k = k^{'}$

$k^{'} = 2 k$

$k^{'} = \frac{1}{2} k$

$k > k^{'}$

Q. For a first order reaction involving decomposition of N2​O5​, following information is available 2N2​O5​(g)​4NO2​(g)+O2​(g), Rate =k[N2​O5​] N2​O5​(g)​2NO2​(g)+21​O2​(g), Rate =k[N2​O5​] Which of following expression is true?

k=k′

k′=2k

k′=21​k

k>k′

2N2​O5​(g)​4NO2​+O2​(g) Rate =−21​dt[N2​O5​]​=k[N2​O5​] or Rate =−dtd[N2​O5​]​=2k[N2​O5​] For N2​O5​​2NO2​+21​O2​ −dtd[N2​O5​]​=k′[N2​O5​] or Rate =−dtd[N2​O5​]​=k′[N2​O5​] Since, rate must be .same, k' = 2k

Q. For a first order reaction involving decomposition of $N_{2} O_{5},$ following information is available $2 N_{2} O_{5} (g) 4 N O_{2} (g) + O_{2} (g),$ Rate $= k [N_{2} O_{5}]$ $N_{2} O_{5} (g) 2 N O_{2} (g) + \frac{1}{2} O_{2} (g),$ Rate $= k [N_{2} O_{5}]$ Which of following expression is true?

$k = k^{'}$

$k^{'} = 2 k$

$k^{'} = \frac{1}{2} k$

$k > k^{'}$