For the reaction below: H CI. H-CI a. Estimate the gas phase enthalpy change using bond dissociation enthalpies from the OWL Table Reference, not data from your text. Click the References button and then click the Tables link on the drop-down that appears. Include algebraic sign and units. b. Is the reaction exothermic or endothermic? O c. Is the reaction likely to proceed spontaneously in the direction written? Ⓒ

For the reaction below: H CI. H-CI a. Estimate the gas phase enthalpy change using bond dissociation enthalpies from the OWL Table Reference, not data from your text. Click the References button and then click the Tables link on the drop-down that appears. Include algebraic sign and units. b. Is the reaction exothermic or endothermic? O c. Is the reaction likely to proceed spontaneously in the direction written? Ⓒ

Living By Chemistry: First Edition Textbook

1st Edition

ISBN:9781559539418

Author:Angelica Stacy

Publisher:Angelica Stacy

ChapterU5: Fire: Energy , Thermodynamics, And Oxidation-reduction

SectionU5.12: Over The Hill: Reversing Reactions

Problem 4E

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a. Estimate the gas phase enthalpy change using bond dissociation enthalpies from the OWL Table Reference, not data from your text. Click the References button and then click the Tables link on the drop-down that appears. Include algebraic sign and units. b. Is the reaction exothermic or endothermic? c. Is the reaction likely to proceed spontaneously in the direction written? Reference the graph when needed. Please and thank you.
Compare balls A and B in terms of potential energy in both the initial and final setups. * -Held in place Initial Final
Using the bond energies below (kJ/mol), calculate the estimated AH of the reaction pictured below the table. Express your answer in kJ/mol. Screen reader note: "=" is read as a double bond. "identical to" is read as a triple bond. All other bonds are single bonds. End of note. %3D H-C H-H 436 414 H-N 389 H-O 464 H-S H-F 565 H-CI 431 H-Br H-I 297 368 364 C=C C-C 347 611 C=C 837 C-N 305 C=N 615 C=N C-O 360. C=O 736 C-CI 891 339 N=N N=N N-N 163 418 N-O 222 N=O 590. O-0 142 O=0 498 C-Br 293 946 Br-Br 193 Cl-CI F-F 159 243 1-I 151 нн нн H-C-C-H + H-C-C-H H-Br Br-Br H-C-C-H H-C-C-H нн H Br +
ORT SHEET Heat of Neutralization EXPERIMENT elemsboomfchg lom 12 A. Heat Capacity of Calorimeter 1. Temp. of calorimeter and water before mixing 2. Temp. of warm water °C 22.0 39,0 30.3 3. Maximum temp. determined from your curve °C 4. Heat lost by warm water (temp decrease x °C 50.0 g x 4.184 J/K-g) = 02), 5. Heat gained by cooler water (temp. increase x 50.0 g x 4.184 J/K-g) = 30,3 22.0)x 13626J s0.0gmpi S0.0gy 6. Heat gained by the calorimeter [(4) – (5)] = 7. Heat capacity of calorimeter: heat gained by the calorimeter temperature increase J/K 3. Heat of Neutralization of HCl-NaOH 22.2 22.2. °C . Temp. of calorimeter and NaOH Temp. of HCI AT determined from your curve after adding HC1 °C to the NaOH Heat gained by solution (temperature increase x ON 100 g x 4.184 J/K-g) = 9977.8J %3D Heat gained by calorimeter (temperature increase x heat capacity of calorimeter) = J %3D Total joules released by reaction [(3) + (4)] = Tight O 2018 Pearson Education, Inc.
Enthalpy means ______ to promote combination of elements to form new substances or compounds: a. chemical reaction b. transfer of heat c. disorder d. all of these may be the correct answers *Choose only one answer
Paraphrasing .ewriting Tool Car note Pirate Ship BLACKBOARD [Review Topics] [References) Calculate strain energy for the conformer pictured below, using strain energy increments from the table. Strain Energy for Alkanes Interaction / Compound kJ/mol kcal/mol H: H eclipsing 4.0 1.0 H: CH3 eclipsing 5.8 1.4 CH3 : CH3 eclipsing 11.0 2.6 gauche butane 3.8 0.9 cyclopropane 115 27.5 cyclobutane 110 26.3 cyclopentane 26.0 6.2 cycloheptane 26.2 6.3 cyclooctane 40.5 9.7 (Calculate your answer to the nearest 0.1 energy unit, and be sure to specify units, kJ/mol or kcal/mol. The answer is case sensitive.) Previous Ne: Sav FEB 1 étv 14 MacBook Air DII DD 11 888 F9 F10 F8 F7 F6 F5 F4 & 2$ 7 8. 4 Y U ト
Using the bond energies below (kJ/mol), calculate the estimated AH of the reaction pictured below the table. Express your answer in kJ/mol. Screen reader note: "=" is read as a double bond. "identical to" is read as a triple bond. All other bonds are single bonds. End of note. H-C H-H 436 414 H-N=N-H H-F 565 H-N H-O H-S H-CI H-Br H-I 297 389 464 368 431 364 + H-H - > H2N- C=C C-C 347 611 C=N 891 C=C C-N C=N C-O C=O C-CI 837 305 615 360. 736 339 NH2 N=N N-N 163 418 N=N N-O N=O O-0 O=O C-F (OR H single bond N double 946 222 590. 142 498 452 CI-CI F-F 159 243 Br-Br |-| 151 - 193 bond N single bond H + H single bond H right arrow N with two single bonds to H atoms and a single bond to a N atom that has two single bonds to 2 H atoms)
Hand sketch and label a simple enthalpy profile diagram for an endothermic and an exothermic reaction. Explain what this diagram represents in detail.
1. The relationship as regards the transfer of heat between the system and the surrounding is INVERSELY proportional. Check the CAPITALIZED WORD(S) if it makes the statement correct. If it does, choose TRUE. If not, choose FALSE. A. TRUE B. FALSE 2. Frying an egg is an ENDOTHERMIC reaction. Check the CAPITALIZED WORD(S) if it makes the statement correct. If it does, choose TRUE. If not, choose FALSE. A. TRUE B. FALSE
Peisalla lamacron Nar. ,202 Date Name Section galauvinstenos Pre-Laboratory Assignment 1. Read an authoritative source for a discussion of preparing and interpreting a graph, especially the extrapolation of a curve. 2. A student determined the calorimeter constant of the calorimeter, using the procedure described in this module. The student added 50.00 mL of cold water to 50.00 mL of heated, distilled water in a Styrofoam cup. The initial temperature of the cold water was 21.00 °C and of the hot water, 29.15 °C. The maximum temperature of the mixture was found to be 24.81 °C. Assume the density of water is 1.00 g mL¯1 and the specific heat is 4.184 J g¯K gniwollot bns of toh bine botollon ot ssb om (1) Determine the AT for the hot water and the cold water. mit At cold water = 24.8I- 21,00 = 3.81°COn आनी AT hot = 24.81- 29.15 = - 4.34°C 60.ES 2.0 0LES 8. 0.1 0.0 If 0.8 28.5S Calculate N 0.4 08.TT gabxim 02 4.34°C hot water 81 answer cold water 381°C dogesn boximnu sdt to anuiSTeqmad mom…
[Review Topics] [References] Use the References to access important values if needed for this question. In the laboratory a "coffee cup" calorimeter, or constant pressure calorimeter, is frequently used to determine the specific heat of a solid, or to measure the energy of a solution phase reaction. Thermometer Stirring rod Since the cup itself can absorb energy, a separate experiment is needed to determine the heat capacity of the calorimeter. This is known as calibrating the calorimeter and the value determined is called the calorimeter constant. One way to do this is to use a common metal of known heat capacity. In the laboratory a student heats 90.04 grams of nickel to 99.33 °C and then drops it into a cup containing 85.30 water at 22.54 °C. She measures the final temperature to be 30.24 °C. grams of Water- Metal sample Using the accepted value for the specific heat of nickel (See the References tool), calculate the calorimeter constant. 2000 Thomaon-arocksCole Calorimeter Constant…
Using the AH-49.5 kJ/mmol, calculate the enthalpy change if you neutralized six moles of HCI with an equal number of moles NaOH to ONE DECIMAL PLACE WITHOUT UNITS Type your answer...