Part AFrom the following enthalpies of reaction:calculate AH for the reaction of ethylene with F₂:Express your answer in kilojoules to three significant figures.AEOAHTzn =2486.3kJSubmitPrevious Answers Request AnswerH₂(g) + F2(g) → 2HF(g),C(s) +2F2 (g) → CF4(g),2C(s) + 2H₂(g) → C₂H₂(g),=ΔΗΔΗAHC₂H4(g) +6F2 (g) → 2CF4 (g) + 4HF (g)-537 kJ-680 kJ+52.3 kJ=

Answered: Image /qna-images/answer/dcd6db14-31a5-4786-90fb-922ddf06588e.jpg

Part A From the following enthalpies of reaction: calculate AH for the reaction of ethylene with F₂: Express your answer in kilojoules to three significant figures. VE ΑΣΦ EXPENGAD AH = 2486.3 kJ Submit Previous Answers Request Answer m H₂(g) + F2(g) → 2HF(g), C(s) +2F2 (g) → CF4(g), 2C(s) + 2H₂(g) → C₂H₁ (g), -537 kJ -680 kJ +52.3 kJ ΔΗ = ΔΗ = AH = C₂H4(g) +6F2 (g) → 2CF4 (g) + 4HF (g)

Part A From the following enthalpies of reaction: calculate AH for the reaction of ethylene with F₂: Express your answer in kilojoules to three significant figures. VE ΑΣΦ EXPENGAD AH = 2486.3 kJ Submit Previous Answers Request Answer m H₂(g) + F2(g) → 2HF(g), C(s) +2F2 (g) → CF4(g), 2C(s) + 2H₂(g) → C₂H₁ (g), -537 kJ -680 kJ +52.3 kJ ΔΗ = ΔΗ = AH = C₂H4(g) +6F2 (g) → 2CF4 (g) + 4HF (g)

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...

See similar textbooks

Similar questions

Sketch an enthalpy diagram for the combustion of cyclopropane, C3H6 (g).
▼ Part A Use standard enthalpies of formation to calculate AH for the following reaction: Express your answer using four significant figures. AH = Submit VT ΑΣΦ Previous Answers Request Answer ? kJ C₂H₂OH(1) +30₂(g)-2CO₂(g) + 3H₂O(g)
Butane, C4H10, is widely used as a fuel for disposable lighters When one mole of butane is burned in oxygen, carbon dioxide and steam are formed and 2654.3382 kJ of heat are evolved.. C4H10 (9) + O₂(g) → 4CO₂(g) +5H₂O(1) The standard enthalpies of formation of CO₂ and H₂O are: CO2(g)=-394.87 kJ/mol H₂O(1)=-285.59 kJ/mol Calculate the standard heat of formation of butane. (Round answer to the second decimal place)
A chemist measures the enthalpy change AH during the following reaction: COC1₂(9) + 4 NH3(9)→ CO(NH₂),(s) + 2NH4Cl(s) Use this information to complete the table below. Round each of your answers to the nearest kJ/mol. esc COC₁₂ (8) + 2NH₂(g) → CO(NH₂), (s) + NH₂Cl(s) 1 1 ẩCO(NH,),() + ≈NH,C() → † COCI,(8) + NH, (8) CO(NH₂)₂ (s) + 2NH₂Cl(s) → COCL, (g) + 4NH, (g) Explanation THE Check reaction I > AH=-559. kJ Costa ΔΗ kJ ☐ kJ KJ MacBook Pro x10 X S © 2022 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | Acc You MOSISO L
(c) Consider the following chemical reaction: C;Hs(g) + H2(g) C2H6(g) + CH4(g) ΔΗ? %3D Calculate the enthalpy change for the reaction above using Hess's law. Thermochemical dat: H:(g) + ½O2(g) H2O(1) AH° =-285.8 kJ AH°combustion for CH4(g) AH° =-890.0 kJ/mol %3D CO:(g) C(s. graphite) + O:(g) AH° = +393.5 kJ AH°combustion for C2H6(g) AH = -1560.0 kJ/mol AH°, for C3H$(g) AH° =-103.8 kJ/mol
Find the ΔH of the following reaction:
Use a table of standard enthalpies of formation to calculate AH°rxn for each of the following reactions. An appendix of standard enthalpies of formation is attached. a) 4 NH3 (9) + 5 O2 (9) → 4 NO (g) + 6 H2O (g) number or fraction only kJ/mol b) 2 Cus (s) + 3 O2 (g) → 2 Cuo (s) + 2 SO2 (g) number or fraction only kJ/mol
O THERMOCHEMISTRY Using Hess's Law to calculate net reaction enthalpy Lindsay Dimethyl ether, a useful organic solvent, is prepared in two steps. In the first step, carbon dioxide and hydrogen react to form methanol and water: CO,(g) + 3 H,(g) → CH;OH(1) + H,0(1) AH=-131. kJ In the second step, methanol reacts to form dimethyl ether and water: 2 CH,OH(1) → CH;OCH,(g) + H,0(1) AH=8. kJ Calculate the net change in enthalpy for the formation of one mole of dimethyl ether from carbon dioxide and hydrogen from these reactions. Round your answer to the nearest kJ. II
Use the standard reaction enthalpies given below to determine AH°rxn for the following reaction: Given: S(s) + 3/2 O2(g) → SO3(g) SO ₂(g) →S(s) + O₂(g) 2 SO2(g) + O2(g) → 2 SO3(g) AHᵒrn = ? AHᵒrn = +297 kJ AH rxn-198 kJ
7. Find AH for the following reaction: C6H12O6 (s) → 2 C₂H5OH (l) + 2 CO₂ (g) The standard enthalpies of formation are: 6 C (s) + 6 H₂(g) + 3 O₂(g) → C6H12O6 (s) 2 C(s) + 3 H₂(g) + O2(g) → C₂H5OH (l) C(s) + O₂(g) → CO₂ (g) AH-1273 kJ/mol AH=-278 kJ/mol AH=-394 kJ/mol
to calculate the true enthalpies of these reactions by the Hess’ law, as: ΔH°(rxn) = Σ[ν × ΔHf°(product)] – Σ[ν × ΔHf°(reactant)] for: Mg(s) + ½O2(g) → MgO(s)
use the standard reaction enthalpies given below to determine ▲H°rxn for the following reaction (see image)