From this post onwards, we are going to study the most fundamental part of photochemistry – the absorption of radiation by atoms and molecules. What
Category: Physical Chemistry
169. PRIMARY AND SECONDARY PROCESSES.
We studied in the earlier posts that the Stark-Einstein law holds true only for the primary process of a photochemical reaction. However, we never studied
168. QUANTUM YIELD
In the last post, we started talking about quantum yield. This quantity tells us how many molecules react by absorbing how many quanta of light.
167. LAWS OF PHOTOCHEMISTRY (13)
In this post, we will start discussing the second law of photochemistry, namely the STARK -EINSTEIN LAW. STARK- EINSTEIN LAW This law was formulated by
166. LAWS OF PHOTOCHEMISTRY (12) – PHOTONS.
A post on photons and rest mass.
165. LAWS OF PHOTOCHEMISTRY (11).
1.The molar absorptivity of a conjugated diene (molecular mass = 110 g/dm3) is 13.100.Calculate the concentration of this diene in a solvent, which is required
164. LAWS OF PHOTOCHEMISTRY (10).
In this post we are going to understand the exponential factor in Beer – Lambert’s law, by assigning imaginary values to different parameters in the
163. LAWS OF PHOTOCHEMISTRY (9).
Xenon Lamp – This is a gas discharge lamp where electricity is passed through ionized gas (xenon) at high pressure , to produce light. Gas
162. LAWS OF PHOTOCHEMISTRY (8).
In the previous post we studied the basic components of a spectrophotometer. Now let us learn each component in a little more detail. Light source
161.LAWS OF PHOTOCHEMISTRY (7).
In the previous post we studied the following equation for Beer – Lambert’s law – We understood that if we decide the intensity of incident
160. LAWS OF PHOTOCHEMISTRY (6).
You have encountered the above expression while studying Beer – Lambert’s law ,right? And did you wonder what this means? How do you arrive at
159.THE LAWS OF PHOTOCHEMISTRY (5).
In the last few posts we have been discussing the Beer – Lambert’s law and various terms associated with it. In this post we are
Madoverchemistry 