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- University of Oklahoma X O Topic: LR Peer Review E O saplingleaming.com/ibiscms/mod/ibis/view.php?id=3871612 – a X | *| = 2 + ... a Sapling Learning macmillan learning Jump to.. · @ Andrea Brisby - Gradebook O Assignment Information # Attempts Score 1 0 0 2 2 100 @ 12/4/2017 11:55 PM & 1.9/3 e Print Calculator Periodic Table Question 1 of 8 Sapling Learning Map 3 1 100 Reaction A Reaction B Available From: 11/27/2017 06:00 PM Due Date: 12/4/2017 11:55 PM Points Possible: 3 Grade Category. Extra Credit Description: Policies: 5 attempt, 0% penalty, Solutions After Due Date 0 Energy (kJ/mol 3 3 Energy 100 (kJ/mol) 5 1 100 600 7 1 100 Fonction progress Reaction progress - You can check your answers. You can view solutions after the due date. You have five attempts per question. There is no penalty for incorrect answers. 8 3100 What is the heat of reaction for Reaction A? Nurnber AH... = kJ/mol What is the heat of reaction for Reaction B? Number OeTextbook an.- ODJ/mol O Help With This Topic What is the activation energy for Reaction B? Number kJ/mol o Web Help & Videos What is the activation energy for Reaction A? Number E- OkJ/mol kJ/mol E- OkJ/mol O Technical Support and Bug Reports O Previous o Check Answer o Next Exk about us careers privacy policy | terms of use contact us help © 2011-2017 Sapling Learning, Inc 1 O Type here to search JO e Ca la de 1214/2017 4:11 PMExplanation / Answer
Reaction A:
delta H rxn = energy of product - energy of reactant
= 25 KJ/mol - 125 KJ/mol
= -100 KJ/mol
Ea = energy of activated complex - energy of reactant
= 150 KJ - 125 KJ
= 25 KJ
Reaction B:
delta H rxn = energy of product - energy of reactant
= 50 KJ/mol - 25 KJ/mol
= 25 KJ/mol
Ea = energy of activated complex - energy of reactant
= 100 KJ/mol - 25 KJ/mol
= 75 KJ/mol
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