For the decomposition of HI at 1000 K(2HI→ H2+I2), the following data were obtained [HI],M Rate of decomposition of HI(mol L-1s-1) 0.1 2.75×10-8 0.2 11×10-8 0.3 24.75×10-8 The order of reaction is:

Question

For the decomposition of HI at 1000 K(2HI→ H2+I2), the following data were obtained [HI],M Rate of decomposition of HI(mol L-1s-1) 0.1 2.75×10-8 0.2 11×10-8 0.3 24.75×10-8 The order of reaction is: (A) 1 (B) 2 (C) 0 (D) 1.5

Tardigrade Admin · Accepted Answer

Rate-k[HI]n 11×10-8=k[0.2]n ....(i) 2.75×10-8-k[0.1]n ....(ii) Dividing eq(i)by eq.(ii) we get 4=2n, n=2

$[H I], M$	Rate of decomposition of $H I (m o l L^{- 1} s^{- 1})$
0.1	$2.75 \times 1 0^{- 8}$
0.2	$11 \times 1 0^{- 8}$
0.3	$24.75 \times 1 0^{- 8}$

Q. For the decomposition of $H I$ at $1000 K (2 H I \to H_{2} + I_{2}),$
the following data were obtained

$[H I], M$ Rate of decomposition of $H I (m o l L^{- 1} s^{- 1})$

0.1 $2.75 \times 1 0^{- 8}$

0.2 $11 \times 1 0^{- 8}$

0.3 $24.75 \times 1 0^{- 8}$

The order of reaction is:

$1$

$2$

$0$

$1.5$

$R a t e - k [H I]^{n}$
$11 \times 1 0^{- 8} = k [0.2]^{n} .... (i)$
$2.75 \times 1 0^{- 8} - k [0.1]^{n} .... (ii)$
Dividing $e q (i) b ye q . (ii) w e g e t$
$4 = 2 n, n = 2$

Q. For the decomposition of HI at 1000K(2HI→H2​+I2​), the following data were obtained [HI],M Rate of decomposition of HI(molL−1s−1) 0.1 2.75×10−8 0.2 11×10−8 0.3 24.75×10−8 The order of reaction is:

1

2

0

1.5

Rate−k[HI]n 11×10−8=k[0.2]n....(i) 2.75×10−8−k[0.1]n....(ii) Dividing eq(i)byeq.(ii)weget 4=2n,n=2

Q. For the decomposition of $H I$ at $1000 K (2 H I \to H_{2} + I_{2}),$
the following data were obtained

$[H I], M$ Rate of decomposition of $H I (m o l L^{- 1} s^{- 1})$

0.1 $2.75 \times 1 0^{- 8}$

0.2 $11 \times 1 0^{- 8}$

0.3 $24.75 \times 1 0^{- 8}$

The order of reaction is:

$1$

$2$

$0$

$1.5$

$R a t e - k [H I]^{n}$
$11 \times 1 0^{- 8} = k [0.2]^{n} .... (i)$
$2.75 \times 1 0^{- 8} - k [0.1]^{n} .... (ii)$
Dividing $e q (i) b ye q . (ii) w e g e t$
$4 = 2 n, n = 2$