Conside. a nypothetical chemical reaction: A+B → C+D (In this equation A, B, C and D stand for some unknown chemical formulas.) Here is an energy diagram for the reaction: 400 - 300 - energy + D 200 (k)/mol) 100 - A + B reaction coordinate Use the energy diagram to answer these questions. What is the heat of reaction? kJ/mol Exothermic Is the reaction exothermic or endothermic? Endothermic Neither O Yes, it's | kJ/mol Can you determine the activation energy? No. Can you determine the activation energy of the reverse reaction? O Yes, it's kJ/mol C+D- A+ B No.

Conside. a nypothetical chemical reaction: A+B → C+D (In this equation A, B, C and D stand for some unknown chemical formulas.) Here is an energy diagram for the reaction: 400 - 300 - energy + D 200 (k)/mol) 100 - A + B reaction coordinate Use the energy diagram to answer these questions. What is the heat of reaction? kJ/mol Exothermic Is the reaction exothermic or endothermic? Endothermic Neither O Yes, it's | kJ/mol Can you determine the activation energy? No. Can you determine the activation energy of the reverse reaction? O Yes, it's kJ/mol C+D- A+ B No.

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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Which statement is true when delta H is negative: 1. The reactants have more energy than the products. 2. The products have more energy than the reactants 3. Energy is destroyed in this reaction. 4. New energy is create in this reaction. please explain each then give answer
. Given the information below, is the reaction endothermic or exothermic? A +B AB AH = -155 kJ %3D
Part 2 The Haber process produces ammonia (NH3) for the chemical industry from nitrogen (N₂) and hydrogen (H₂) as shown in the chemical equation below. This is a reversible reaction. N2 (8) + 3H2(g) → 2NH3 (8) AH = -92 kJ mol-¹ (exothermic) The following questions relate to the effect of changing factors that influence the direction of the above reaction, according to Le Chatelier's principle. For each change in factor (i - iv) listed in the Table, you need to: state the direction of equilibrium, give a reason for your choice, identify if the amount of ammonia produced will increase or decrease. Factor Decrease in concentration of N₂ i) ii) Increase in pressure iii) Increase in temperature iv) A catalyst is added Direction (shift) of equilibrium Scientific explanation for stated direction of equilibrium. Amount of NH3 Increases / decreases Part 3 During this reaction, compromises are made to speed up and maximise the production of ammonia. i) ii) Suggest why a moderate amount of…
does adding temperature to a chemical reaction favor the reaction endothermically?
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How much energy in kJ is required to decompose 765 g of PCI3, according to the reaction below? (PCI3:137.32 g/mol) 31 - 4 PC13(g) → P4(s) + 6 Cl2(g) AH°rxn =+1207 kJ O A) 1681 O B) 7016 O C) 5950 O D) 4582 O E) 2310
So,i do not understand nothing. On how to this. Please explain with steps,and also, can you mark how many times it went up and down,the limit is 8 steps going up. Thanks
4. In an experiment, 1.010 g of sugar (molar mass = 342.3 gmol) gave off 16.7 kJ of heat in a combustion reaction. Determine the energy per mol of sugar. O A) -16,500 k/mol O B) -12,400 kJ/mol O C -7,110 k/mol O D)-5660 kl/mol O E) -49 k/mol
A chemist measures the energy change AH during the following reaction: Cl₂(g) + H₂(g) → 2 HC1 (g) AH=184. kJ Use the information to answer the following questions. endothermic. This reaction is... 0 exothermic. Suppose 28.0 g of Cl₂ react. Yes, absorbed. Yes, released. Will any heat be released or absorbed? No. If you said heat will be released or absorbed in the second part of this question, calculate how much heat will be released or absorbed. Round your answer to 3 significant digits. ☐kJ x10 X ?
Calculate the heat of reaction AH for the following reaction: CH₂(g) +20₂(g) →CO₂(g) + 2H₂O(g) You can find a table of bond energies by using the Data button on the ALEKS toolbar. Round your answer to the nearest kJ/mol. -7891 ing 0 kJ mol I Don't Know Submit olo Data bond C-H C-F C-CI C-Br C-I C-C C=C C=C C-O C=O CEO C-N C=N C=N C-P C-S energy (kJ/mol) 413 460 350 293 211 370 602 839 385 532 1077 356 615 749 263 312 bond N-H N-C N=C N=C N-O N=O NEO N-N N=N NEN N-P N-F N-CI N-Br energy (kJ/mol) 391 356 615 749 206 631 1020 277 418 945 209 349 334 281 bond S-H S-F S-CI S-Br S-I S-S S=S energy (kJ/mol) 381 392 272 230 206 271 418
113 kJ of heat is absorbed when one mole of carbon reacts with one mole of water. Energy + C + H2O → CO + H2 According to the reaction above it can be concluded that the reaction is a endothermic, because the change of enthalpy was negative b exothermic, because the change of enthalpy was negative c exothermic, because the change of enthalpy was positive d endothermic, because the change of enthalpy was positive
c. Draw a potential energy diagram for the formation of NO₂(g): N₂(g) +20₂(g) → 2NO2(g). AHreaction = 66.2 kJ/mol. Label the graph with "Reactants," "Products," "AHreaction," and "Ea