Part A The activation energy of a certain reaction is 30.5 k.J/mol At 20 °C, the rate constant is 0.0130 s At what temperature would this reaction go twice as fast? Express your answer numerically in degrees Celsius View Available Hint(s) Templates Symbols undo redo teset keyboard shortcuts help T = °C Submit Part B Given that the initial rate constant is 0.0130 s at an initial temperature of 20°C, what would the rate constant be at a temperature of 100 °C? Express your answer numerically in inverse seconds. > View Available Hint(s) Templates SymBols undo redo Teset keyboard shortcuts help Submit Prevlous AnBwere

Part A The activation energy of a certain reaction is 30.5 k.J/mol At 20 °C, the rate constant is 0.0130 s At what temperature would this reaction go twice as fast? Express your answer numerically in degrees Celsius View Available Hint(s) Templates Symbols undo redo teset keyboard shortcuts help T = °C Submit Part B Given that the initial rate constant is 0.0130 s at an initial temperature of 20°C, what would the rate constant be at a temperature of 100 °C? Express your answer numerically in inverse seconds. > View Available Hint(s) Templates SymBols undo redo Teset keyboard shortcuts help Submit Prevlous AnBwere

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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View Policies Show Attempt History Current Attempt in Progress X Incorrect. -1 The catalyzed decomposition of ethanol at 327°C has a rate constant of 4,00 x 105 L mol¹1A graph of the reciprocal of ethanol concentration versus time gives a straight line. The chemical equation for the reaction at this temperature is C₂H₂OH(g)-CHg) + H₂O(g) If the initial concentration of ethanol is 0.023 mol L¹, how long will it take for the pressure to reach 1.4 atm at 327°C? i 60 eTextbook and Media Hint 1. The unit of the rate constant indicates the order of reaction. 2. Use partial pressures and the universal gas law to calculate moles and concentrations. 3. Set up a table showing initial molar concentrations and concentrations at time t Save for Later 45 hours 80 d F4 MacBook Air F6 Attempts: 4 of 15 used Submit Answer Assistance Used 8: DII 8² St
Consider the following reaction: CaO(s) + CO₂(g) → CaCO3(s) The data found below are the results obtained from using different concentrations of each reactant to measure the initial rate of the reaction: Trial 1 2 3 4 [CaO] (mol L-¹) [CO₂] (mol L-¹) 0.0050 0.0150 0.0200 0.0150 0.0020 O 0.0021 mol L-1 O 0.0042 x 10-² mol L-¹ O 0.4167 mol L-1 O 0.0083 mol L-1 O 0.004 mol L-1 0.0020 0.0040 Determine the concentration of CO₂ during trial 3. Initial Rate (mol L-¹ s-¹) 1.50 × 10-3 0.0135 0.025 0.027
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O KINETICS AND EQUILIBRIUM = 3/5 Using first- and second-order integrated rate laws Consider this reaction: 2N₂O5 (g) → 2N₂O4 (g) + O₂(g) At a certain temperature it obeys this rate law. rate = (1.3 M¹-s¯¹) [₂0₁] olo Suppose a vessel contains N₂O5 at a concentration of 1.20M. Calculate the concentration of N₂O5 in the vessel 7.30 seconds later. You may assume no other reaction is important. Round your answer to 2 significant digits. M X Explanation Check Chelsea V @ EH
A reaction is identified as zero-order in one of its reactants, X. Time (s) [X] (M) 0 1.50 110 0.80 Based on the data and integrated rate law, what is the rate constant for the reaction at this temperature? k = [?] x 10 M-s-1 coefficient (green) exponent (yellow) Enter
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The rate of decomposition of PH3 was studied at 921.00 °C. The rate constant was found to be 0.0705 s-!. 4PH, → P+ 6H, 3rd attempt Feedback i See Periodic Table If the reaction is begun with an initial PH3 concentration of 0.95 M, what will be the concentration of PH3 after 10.00 s? 0.3775 M
Ⓒ Macmillan Learning Enter these data into the graphing tool and determine the value and units of the rate constant, k, for this reaction. Graphing Tool Add Row 10 total rows [A] [A] vs. t In[A] In[A] vs. t t (min) 0.0 2.0 4.0 6.0 1/[A] vs. t [A] (M) 1.00 0.66 0.43 0.28 1/[A] Clear All Data
Question 17 of 23 Submit Butadiene reacts to form a dimer according to the equation 2C,H6(g) → C3H12(g) The reaction obeys the second order rate law, Rate = k[C,H,]?, with a rate constant k = 3.68 M-'min at a certain temperature. Starting with an initial concentration of [C,H] = 0.0500 M, what will be the butadiene concentration after 31.0 min? | M 1 2 3 C 7 9. +/- x 10 0 LO 00
Ln [A] Post Lab Assignment 1. Nitrosyl chloride, NOCI, decomposes to NO and Cl2. 2NOCI(g) → 2NO(g) + Cl, (g) Determine the rate law, the rate constant, and the overall order for this reaction from the following data: [NOCI] (M) Rate (mol L-1 h-1) 0.10 0.20 0.30 3.2 x 10-9 7.2 x 10-9 2. A 5.0 mL dye solution of 3.45 e-5 M is mixed with 15.0 mL bleach solution of 0.21 M. What are the initial concentrations of [Dye] and [Bleach] for your experiment? 3. The plots of 1/[A] vs time, In([A]) vs. time, and [A] vs. time of a solution of substance A are shown below. What is the reaction order with respect to A? 000 009 007 000 0 20 40 Time (min) Time 09 08 Time
A + B +C → D Reaction [A] (М) [B] (М) [C] (М) Experiment Rate () 0.10 0.10 0.10 0.003 2 0.20 0.10 0.10 0.012 3 0.10 0.30 0.10 0.003 4 0.20 0.10 0.20 0.024 Determine the rate of the reaction when [A]= 0.30 M, [B] = 0.10 M and [C] = 0.20 M.
Consider this reaction: 2C1,0, g) → 2C1, (6) + 50, (g) At a certain temperature it obeys this rate law. rate = (0.36 Ms)[C1,0,1 %3D Suppose a vessel contains Cl,0, at a concentration of 0.630 M. Calculate how long it takes for the concentration of Cl,0, to decrease to 5.0% of its initial value. You may assume no other reaction is important. Round your answer to 2 significant digits.