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

158. THE LAWS OF PHOTOCHEMISTRY (4).

Absorbance In the previous post, we introduced the term absorbance. The term absorbance quantifies the amount of light absorbed by a solution. We know from

157.THE LAWS OF PHOTOCHEMISTRY (3).

Absorbance and Transmittance Absorbance(A) and transmittance(T) are two sides of a coin. Absorbance (A) is the amount of light absorbed and transmittance is the the

156.THE LAWS OF PHOTOCHEMISTRY (2).

The Lambert’s Law We studied in the previous post, that according to Lambert’s law, absorbance (A) is directly proportional to the path length or thickness