A [Review Topics] [References] cyclopropane 115 27.5 cyclobutane 110 26.3 cyclopentane 26.0 6.2 cycloheptane 26.2 6.3 40.5 9.7 cyclooctane ⚫ (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.) H H. 9 H. H eq eq M Preq Strain energy = H ball & stick + labels Submit Answer Retry Entire Group 8 more group attempts remaining F4 4 $ % 5 Cengage Learning Cengage Technical Support F5 F6 96 PrtScnF8 Home End PgUp. PgDn F9 F10 27 & ) 8 9 R T Y U I O P F G H J K L

A [Review Topics] [References] cyclopropane 115 27.5 cyclobutane 110 26.3 cyclopentane 26.0 6.2 cycloheptane 26.2 6.3 40.5 9.7 cyclooctane ⚫ (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.) H H. 9 H. H eq eq M Preq Strain energy = H ball & stick + labels Submit Answer Retry Entire Group 8 more group attempts remaining F4 4 $ % 5 Cengage Learning Cengage Technical Support F5 F6 96 PrtScnF8 Home End PgUp. PgDn F9 F10 27 & ) 8 9 R T Y U I O P F G H J K L

Chemistry by OpenStax (2015-05-04)

1st Edition

ISBN:9781938168390

Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser

Publisher:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser

Chapter5: Thermochemistry

Section: Chapter Questions

Problem 2E: Prepare a table identifying several energy transitions that take place during the typical operation...

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For each organic compound in the table below, name the highlighted side chain. Note for advanced students: don't include the locant of the side chain. compound H-C=0 name of highlighted side chain - - CH₂ — CH₂ — CH₂ — CH₂ — CH₂— CH₂· - CH G H C 0 H C 0 CH3 CH - CH2-CH₂ CH2 | H C 0 CH₂ CH₂2 I CH₂ CH₂ O HOC CH - CH2CH2 CH₂ — CH₂ CH=CH2 ☑ ☐
O Macmillan Learning For a particular isomer of Cg H₁g, the combustion reaction produces 5108.7 kJ of heat per mole of Cg H₁ (g) consumed, under standard conditions. 18⁹ 18 C8H₁8 (g) + 25/ 02(g) 8 CO₂(g) + 9 H₂O(g) 2 AH; = ΔΗ AH ixn = -5108.7 kJ/mol What is the standard enthalpy of formation of this isomer of Cg H₁8 (g)? Standard enthalpy of formation values can be found in this table of thermodynamic values. 8 18 kJ/mol
1. Using two or more of the following. N.(g) + 10,(g) → N.O.(s); AH = 83.7 kJ N.(g) + O(g) → 2NO(g): AH 180.4 kJ IN.(g) + O.(g) → NO.(g): AH = 33.2 KJ IN.(g) + H₂(g) → NH,(g); AH = -45.9 kJ determine AH" for the following reaction. NO(g) + NO₂(g) → N₂O(g)
Benzene is one of the compounds used as octane enhancers in unleaded gasoline. It is manufactured by the catalytic conversion of acetylene to benzene: 3C2 H2(g) ⟶ C6 H6(g). Which value of Kc would make thisreaction most useful commercially? Kc ≈ 0.01, Kc ≈ 1, or Kc ≈ 10. Explain your answer.
Use and modify some/all the reactions provided to form the indicated overall reaction according to Hess' Law. • If a reaction is not used in your Hess' Law process, include that indication by multiplying the reaction by "0" • If no modification is needed and the reaction is applied as written below, include that indication by multiplying the reaction by "1" • Use whole numbers and simple fractions (such as "2" or "1/2", not 0.5) and negative signs (such as "-2") where needed Then calculate and report the enthalpy change (in kJ) for the overall reaction in the indicated blank, including units with your written value and rounded to 1 decimal place. Overall Reaction: CS2(1) + 302(g) → CO2(g) + 2SO2(g) Rxn # Reaction ΔΗ° (kJ) 1 C(s) → C(g) 716.67 2 C(s) + O2(g) → CO2(g) -393.5 3 3Fe(s) +202(g) → Fe3O4(s) -1118 4 C(s) + 2S(s) → CS2(1) 87.9 5 CH4(g) + O2(g) → CO₂(g) + H₂O(g) -882.0 6 S(s) + O2(g) → SO2(g) -296.8 N2(g) + 4H2(g) + Cl2(g) → 2NH4Cl(g) -629.1 7
Consider the combustion of methane, CH4, shown below: CH4 (g) + 2 O2 (g) ⇋⇋ 2 H2O (g) + CO2 (g) What is the Kc expression? Select one: a. Kc=[CO2][H2O]2[CH4][O2]2Kc=[CO2][H2O]2[CH4][O2]2 b. Kc=[CO2]∗2∗[H2O][CH4]∗2∗[O2]Kc=[CO2]∗2∗[H2O][CH4]∗2∗[O2] c. Kc=[CH4][O2]2[CO2][H2O]2Kc=[CH4][O2]2[CO2][H2O]2 d. Kc=[CO2][H2O][CH4][O2]Kc=[CO2][H2O][CH4][O2] e. Kc=[CO2]2[H2O]4[CH4]2[O2]4
NUMBER 63 and 64 and 65
Name these organic compounds: Η H H H | | | Η· C C C C C=H | | | | | H H H H H — H Η structure — — H H - C C 1 1 Η - Η - - Η - H | H — C - Η | H name
During the combustion of 5.00 gg of octane, C8H18C8H18, 239.5 kcalkcal (1002 kJkJ) is released. what is the balanced equation for the combustion reaction? How much energy (in kJkJ) is released by the combustion of 1.21 molmol of C8H18C8H18 ? How many moles of octane must be burned to release 442.4 kcalkcal ? How many kilocalories are released by the combustion of 18.3 gg of C8H18C8H18 ?
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