as aboue

2 years ago

Share

Answers : (1)

                    

1. Photochemical reactions do not take place in dark but take place in the presence of light by absorbing it.


2. Since different colored radiations in the range of visible light have different frequencies and hence different energies, therefore all radiations may not be able to initiate a particular reaction. For example, a photon of violet light has highest frequency and hence the highest energy. Hence a reaction which is initiated by violet light may not be initiated by other colored radiations 0of visible light. On the other hand, a photon of red light has lowest frequency and energy. Therefore a reaction that can be initiated by all other radiations as well.


3. Temperature has very little effect on the rate of a photochemical reaction. Instead, the intensity of light has marked effect on the rate of photochemical reaction.


4. The free energy change of a photochemical reaction may not be negative.


5. There are many substances which do not react directly when exposed to light. However, if another substance is added, the photochemical reaction starts.


example:- photosynthesis,etc.

2 years ago

Post Your Answer

More Questions On Organic Chemistry

Ask Experts

Have any Question? Ask Experts
Post Question
 
Answer ‘n’ Earn
Attractive Gift
Vouchers
To Win!!!
Click Here for details
The toxic environmental pollutant dioxin is 44.8% carbon, 1.25% hydrogen and 44.0% chlorine. Its molecular weight is 320±10 What is the molecular formula of dioxin? A) C 10 H 8 O 4 Cl...
 
 
yes please tell me full solution for this
  img
Deepak Patra 6 months ago
 
C12H4O2Cl4 if u need full solution plz let me know....
 
Shiv 6 months ago
what is mean by a indicator in titration?
 
 
Titration is the process of determining the volumes of reagents(or solutions),required for the just completion of a reaction.The point at which the reaction is just completed is called the...
  img
Aarti Gupta 3 months ago
 
While performing a titration, we slowly add one solution of a known concentration to another known volume but without knowing concentration. This process of adding titrant to another...
  img
Vasantha Kumari 3 months ago
 
Indicator is a substance that changes the color of a solution in order to detect the presence of certain ions in it. It can also be used to indicate the presence of completion of a reaction...
  img
Ruchi Shaw 3 months ago
how to convert ethyne to aniline ?
 
 
first we should convert ethyne to benzene by passing through organo nickle catalyst at 70c or cu tube at 300c then from benzene we can form aniline.
 
muaaz 4 days ago
Question attached in image . (Q22)
 
 
Since the number of activated molecules increases with the increase in temperature the number of effective collisions also increases with the rise in temperature and this increases the rate...
  img
Sunil Kumar FP 12 days ago
what is the formal charge on N ,B . in B6N3H6.? not B3N3H6
 
 
-1 and+1
 
safoora 6 months ago
 
0 and 0
 
safoora 6 months ago
 
which answer is correct please tell me
 
safoora 6 months ago
i need any tips to memorize inorganic chemistry
 
 
Hello Student. You have asked a very important question. But the answer is , There is no need to memorize it. You should try to understand the concepts of inorganic chemistry. It is not...
  img
sumit kumar 25 days ago
View all Questions »