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Some free radical chemical reactions start with the photodissociation of I2 molecules into Iodine atoms (gas...

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Chemistry

Some free radical chemical reactions start with thephotodissociation of I2 molecules into Iodine atoms (gas phase) bylight with a wavelength shorter than about 792nm. A 100.0mL glasstube, pressure= 55.7mtorr and temperature 25.0C contains I2molecules What minimum amount of energy must be absorbed by theiodine in the tube to dissociate 15% of the the molecules?

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4.3 Ratings (637 Votes)
I2 2I energy required 792nm Convert nm to m 7920 nm 7920 x 109 m 7920 x 107 m 2 Determine the frequency c 7920 x 107 m x 300 x 108 ms x 370 x 1014 s1 3    See Answer
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