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olya-2409 [2.1K]
3 years ago
14

An alkane with the formula C6H14 can be prepared by hydrogenation of either of two precursor alkenes having the formula C6H12. W

rite the structure of this alkane.
Chemistry
1 answer:
EleoNora [17]3 years ago
8 0
            
             H  H H H H H
              |   |   |   |   |   |
         H-C-C-C-C-C-C-H  
              |   |   |   |   |   | 
             H  H H H H H
This is the structural formula for C6H14. Every carbon atom in the molecule must be surrounded by four bonds. Hope this answers your question. 



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Answer: 4.3\times 10^{-13}s^{-1}

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or,

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where,

K_1 = rate constant at 600.0K = 6.1\times 10^{-8}s^{-1}

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Ea = activation energy for the reaction = 262 kJ/mol = 262000J/mol

R = gas constant = 8.314 J/mole.K

T_1 = initial temperature = 600.0K

T_2 = final temperature = 775.0K

Now put all the given values in this formula, we get

\log (\frac{6.1\times 10^{-8}}{K_2})=\frac{262000}{2.303\times 8.314J/mole.K}[\frac{1}{600.0K}-\frac{1}{775.0K}]

\log (\frac{6.1\times 10^{-8}s^}{K_2})=5.150

(\frac{6.1\times 10^{-8}}{K_2})=141253.8

Therefore, the value of the rate constant at 775.0 K is 4.3\times 10^{-13}s^{-1}

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