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Order of Reaction

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Question

Find the order of the decomposition of gaseous acetaldehyde.

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Solution

The Order of the decomposition of gaseous acetaldehyde is 'Two'
Its a Second Order Reaction.
The reaction can be given as:
$C H_{3} C H O \to C H_{4} + C O$

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518^{o} C

, the rate of decomposition of a sample of gaseous acetaldehyde, initially at a pressure of

363 T o r r

1.00 T o r r s^{- 1}

5 %

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0.5 T o r r s^{- 1}

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518^{\circ} C

the rate of decomposition of a sample of gaseous acetaldehyde initially at a pressure of 363 Torr, was 1.00 Torr

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Q. What is the order of thermal decomposition of gaseous ammonia on platinum?

Q. Give the order of the following reactions:
(a) Artificial radioactive decay
(b) Decomposition of gaseous ammonia on a hot Pt-surface at high pressure
(c) Hydrogenation of ethene
(d) Decomposition of

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Q. The recombination of methyl radicals has no activation barrier. The activation energy values for the first step in the thermal thermal decomposition of acetaldehyde given and

E_{p h o t o c h e m i c a l}

309.32 k J m o l^{- 1}

41.8 k J m o l^{- 1}

respectively.
Calculate the overall activation energy for the thermal decomposition of acetaldehyde.

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