Factors affecting intensity of color

Factors affecting intensity of color - The significance in...

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Summarize the factors that affect the intensity of color and how Describe the usefulness of having a straight-line plot that relates the function of %T vs. concentration. Discussion/ Conclusion – Intensity is often described as the amount of a substance, and in regards to color, intensity is how bright or dull that color is. In spectrophotometry, the intensity of color is directly proportional to the concentration of the solution. In a spectrophotometer, light shines through a sample solution and then a detector measures the intensity of the light. The more concentrated the solution, the more intense the color, and hence more light will be absorbed by the solution and less light will pass through to the detector. Also, the transmittance of a solution is directly proportional to the amount absorbed. As predicted, the best absorbency will occur between colors that are farthest away from each other in the visible light spectrum. Overall intensity of a colored light is independent of the surface from which it is reflected.
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Unformatted text preview: The significance in using a straight-line plot is calculating the difference in absorbance and concentration using a constant (also known as Beers Law). Wavelength is a major factor that affects the intensity of color. Larger absorbency will occur between two colors that have the greatest change in wavelength. For example, if a dye and light color were the same, the percent transmittance would be large. Concentration is also a factor affecting color intensity. Having that been said, the majority of percent T depends upon a solutions concentration (concentration and absorbency increase, while transmittance decreases.). A manufacturing company should always examine the visible spectrum to decide which color to use in a product. There are numerous color dyes that have different purposes for each type of material, thus knowing how to calculate color intensity is quite important....
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This note was uploaded on 09/14/2011 for the course CHM 113 taught by Professor Anbar during the Spring '06 term at ASU.

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