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vodka [1.7K]
3 years ago
6

If the heat change of the surroundings (such as the solution the reaction is occurring in) is determined to be 2.7 kJ, what is t

he heat change of the reaction (qrxn)?
Physics
1 answer:
marusya05 [52]3 years ago
4 0
If the heat change of the surroundings (such as the solution the reaction is occurring in) is determined to be 2.7 kJ, what is the heat change of the reaction (qrxn)?

Answer: First of all we can conclude that this is an exothermic reaction. The reason being that an exothermic reaction is one that produces a temperature increase in a isolated system giving off heat to the surroundings. Therefore the heat of the reaction is a negative quantity (qrxn < 0).

I hope it helps, Regards.
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Unpolarized light is passed through three successive polaroid filters, each with its transmission axis at 32. 8° to the precedin
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From the question,

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Substituting the values,

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The light emerging from the third polarizer is represented as,

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I₃ = ( 0.706 / 2 ) I₀ x cos² (32.8)

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The percentage of intensity of light  that gwts through with respect to the intensity of unpolarized light is given by the equation,

(I₃ / I₀) x 100

Substituting the values

[(0.249 x I₀) / I₀ ] x 100 = 24.9 %

Hence the percentage of light gets through is 24.9%

To learn more about unpolarized light: brainly.com/question/17164167

#SPJ4

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