Consider the potential energy vs reaction coordinate diagram in problem 70 in your text on pg 616. Which of the answers below best describes the change in enthalpy for this reaction?Group of answer choicesA) thermoneutralB) endothermicC) exothermicD) endogonic A Chemistry The Central Science by Theodore L. Brown H. Eugene LeMay Jr Bruce E. Bursten Catherine J. Murphy Patrick Woodward Matthew E. Stoltzfus (z-lib.org).pdf - Adobe Acrobat Pro DC (32-bit)File Edit View E-Sign Window HelpHomeToolsChemistry The Cen. xSubscribe656 / 1249110%BA14.74 You have studied the gas-phase oxidation of HBr by O2:Search tools4 HBr(g) + O2(8) → 2 H20(8) + 2 Br2(8)You find the reaction to be first order with respect to HBrand first order with respect to O2. You propose the follow-ing mechanism:Create PDFReaction progress4i Combine FilesHBr(g) + O2(8)HOOB1(g)14.70 Consider the following energy profile.HOOBI(g) + HBr(8)2 HOBI(g)HOBI(g) + HBr(8) → H20(g) + Br2(g)Edit PDF(a) Confirm that the elementary reactions add to give theoverall reaction. (b) Based on the experimentally deter-mined rate law, which step is rate determining? (c) Whatare the intermediates in this mechanism? (d) If you areunable to detect HOBR or HOOBR among the products,does this disprove your mechanism?FEATUREDA Request Signatur.Fill & SignReaction progessCatalysis (Section 14.7)LO Export PDF14.75 (a) What is a catalyst? (b) What is the difference betweenE0 Organize Pages(a) How many elementary reactions aremechanism? (b) How many intermediates are formed inthe reaction? (c) Which step is rate limiting? (d) For theoverall reaction, is AE positive, negative, or zero?the reactiona homogeneous and a heterogeneous catalyst? (c) Do cat-alysts affect the overall enthalpy change for a reaction,the activation energy, or both?Là Send for Comme.14.71 The following mechanism has been proposed for the gas-14.76 (a) Most commercial heterogeneous catalysts are ex-tremely finely divided solid materials. Why is particle sizeimportant? (b) What role does adsorption play in the ac-tion of a heterogeneous catalyst?phase reaction of H, with ICI:CommentH2(8) + ICI(8)· HI(g) + HCI(g)HI(8) + ICI(8) → L(8) + HCl(8)14.77 In Figure 14.21, we saw that Br (ag) catalyzes the decom-position of H,O2(aq) into H20(1) and O2(8). Suppose thatsome KBr(s) is added to an aqueous solution of hydrogenEdit PDF content(a) Write the balanced equation for the overall reaction.(b) Identify any intermediates in the mechanism. (c) IfMake changes to text and imagesright in your PDF.Edit a PDF4:05 PMP Type here to search61°F Mostly sunny4)2/19/2022Potential energy

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We found that when  ∆H = -ive the reaction is exothermic Hence option C is correct that is…

Consider the potential energy vs reaction coordinate diagram in problem 70 in your text on pg 616. Which of the answers below best describes the change in enthalpy for this reaction? Group of answer choices A) thermoneutral B) endothermic C) exothermic D) endogonic