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Electrolysis and Electrolytes

What is photo...

Question

What is photochemical decomposition?

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Solution

The reaction in which a compound splits up into two or more simpler substance called as decomposition reaction.
When decomposition reaction is carried out by light then it is called photochemical decomposition.

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What is photochemical decomposition? Write one application of this example.

Q. On photochemical decomposition of

H N O_{3}

the products formed are :

Q. In the photochemical decomposition of acetaldehyde, one photon of absorbed light decomposes one molecule of

C H_{3} C H O

∙ C H_{3} a n d ∙ C H O

^{'} I_{a b s}^{'}

is the intensity of light absorbed in the reaction. Write the rate equation for this photochemical decomposition. (Note: the first step in the photochemical reaction is temperature independent)
Calculate

[∙ C H_{3}] a n d \frac{d [C O]}{d t}

assuming steps (ii) to (iv) given are same and

[∙ C H_{3}], [∙ C H_{3} C O]

are under steady state.

Q. The arrhenius (pre exponential) factors and activation energy values for steps

(i)

(i v)

A_{1}, A_{2}, A_{3}, A_{4} a n d E_{1}, E_{2}, E_{3} a n d E_{4}

respectively.
Calculate the overall activation energy

E_{t h e r m a l}

for the thermal decomposition of acetaldehyde.
Write the expression for overall activation energy,

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

of photochemical decomposition of acetaldehyde.

H N O_{3}

is colourless but it is often yellow in colour due to photochemical decomposition."
Answer whether the above statement is true or false.
If true enter 1, else enter 0.

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