Question

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這兩題該怎麼寫

5. Suppose that a reaction C2H6C2H4+H2 is believed to occur by the mechanism:
1. C2H6-2CH3
2. CH3+ C2H6 CH4+ C2H5
->>
3. C2H5 C2H4+H
4. C2H6+H→C2H5+H2
5. 2 C2H5 C4H10
.
Apply the steady-state treatment to C2H5 CH3 Hand obtain an expression for the
overall rate.
6. The reaction between chlorine and chloroform in the gas phase follows the
stoichiometric equation
CHC13 C12 CCl4 + HCl
It is believed to occur by the mechanism
Cl₂+hv
2C1
Cl+CHCl3
HCl + CC13
CC13 C12 CCl4 + Cl
2C1→Cl₂
Assume that the steady-state treatment can be applied to C1,CC13 and obtain an
expression for the overall rate.

5. C₂ H6 = C2H4 + Hz
~C₂Hb => ②CH3
www
→
123
CH3 + C₂H6 CH4 + C₂Hs
C2H5 123> C₂H 4 + H
24
C₂Hb+ H 14> C₂Hs + H₂
Cz
mmm
k5
C2H5
2 C2H5 5> C4H10
VCH₂ = 2V₁ - V₂
2k1 [cat]
[CH3]
=
kz [czkb]
= 1
VH
=
V₁ = k₁ [C₂H6]
V₂ = k [CH] [CzHb]
:
V3 = 3 [C₂ts]
V4 = 14 [C₂H6] [H]
V5 = ks [C₂HS]②
√3 - √4 = 0
k23 [C2H5]
VC₂HS
=
V₂+V4 V3-2Vs=0
[H] = 24 [C₂Hb]
[C₂Hs] = k [CH] [C₂H6] + 124 [C2H6] [M
- 13 [Caths] - 2/25 [C₂HS]*

D
6. CHCl3 + Cl2 = La++Ha
C₁ + hvu
www
a + CHU 3 Ha + (U3
Cα = + U₂ k cat + a
3 A z
ww
K4
Az
ww
V₁ =2V₁ + V3-2-2√4
=
=
= 0
V₁ = k₁ [u₂]
V₂ = k z [u] [ CH Us]
V3
=
[<3 [CC3] [U2]
V4 = 14 [u]²
à k₁ [U.] + 123 [Cl] [u₂]
Tu[a] [Ca] 44 [u]"
[u]
144 [u]"
(V2 ≈ √3)
Vcus = V₂- V3=0
kz [a] [CH Us]
=
123 [2]
VHU - V₂ = 12 [U] [ CH U3]
= kz

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