r st q t r 10 3 20 3 30 3 12 Consider the data below and determine the value of

# R st q t r 10 3 20 3 30 3 12 consider the data below

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r = st q t r 10 3 20 3 30 3 12. Consider the data below and determine the value of the exponent q . Justify your answer with an explanation or a mathematical equation. r = st q t r 2 12 4 48 6 108 12. Solve for the constant s in Question 11 above. Read This! A rate law is a mathematical equation that relates the rate of the reaction to the concentrations of the reactants . For the reaction a A + b B products the rate law is : Rate = k [A] x [B] y k = rate constant [A] = concentration of A [B] = concentration of B x = order of the reaction with respect to A y = order of the reaction with respect to B x + y = overall order of the reaction Model 2 Decolorization of a Dye rate = k [dye] n where k = 3.40 × 10 3 13. Identify the reactant in the process being studied in Model 2 . 14. Refer to Model 2 . a) Circle the rate law for the decolorization of a dye in Model 2 . b) What variable represents the constant in the rate law? c) What variable represents the order of the reaction? [dye] if n = 0, then rate = ? if n = 1, then rate = ? if n = 2, then rate = ? 0.10 M 0.20 M 0.30 M Chemistry POGIL - Rates Ms. Park 15. Fill in the table in Model 2 . Divide the work with your partner. Note: The unit for rate should be “ molarity per second ” in all cases. 16. How does the initial rate of reaction change as the concentration of the reactant increases when the order of the reaction is zero? 17. How does the initial rate of reaction change as the concentration of the reactant increases when the order of the reaction is one? 18. How does the initial rate of the reaction change as the concentration of the reactant increases when the order of the reaction is two? Sample Question: 19 . For the reaction of nitrogen monoxide and chlorine, the observed rate law is: Rate = k [NO] 2 [Cl 2 ] 1 a) What is the order with respect to nitrogen monoxide? b) What is the order with respect to chlorine? c) What is the overall order for this reaction? d) If the concentration of NO is doubled while the chlorine concentration is held constant, how will the rate of the reaction change? e) If the concentration of Cl 2 is tripled while the NO concentration is held constant, how will the rate of the reaction change? f) If the concentration of both reactants are doubled, how will the rate of the reaction change? #### You've reached the end of your free preview.

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