CHE154-H Gen Chem II Bronik 2 of 15Review I Constants I Periodic TablePart A2CH4 (g) → C2H6(g) + H2 (g)Express your answer to one decimal place and include the appropriateunits.HAAGIX.ValueUnits%3D

ΔG0 of any reaction is given by ΔG0 = sum of ( ΔG0f of products X reaction coefficient) - sum of…

Answered: CHE154-H Gen Chem II Bronik

Science

Chemistry

CHE154-H Gen Chem II Bronik

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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Predict the sign of the entropy change, AS° , for each of the reaction displayed. Drag the appropriate items to their respective bins. • View Available Hint(s) Reset Help A : Ba?+ (ag) + S02²- (ag)→BASO4() : Ca(OH)2(s)→C2O(s) + H20(g) C : 2NO2(9)→N2(9) + 202(9) D : 2H2(g) + O2(9)→2H2O(1) E : C;H16(9) + 1102(g)→7CO2(9) + F: 12 (s)→I2(9) Positive Negative
Unit 2 - Standard Free Energy from Formation Data [Review Topics] [References] 1. Practice - Exercise 18.044 Enhanced 3 pt Calculate the standard free energy of the following reactions at 25°C, using standard free energies of formation. 2. Interactive Example - Calculating A...1 pt M) Substance AG; (kJ/mol) H2O2 (ag) H2O(1) COCL2 (g) H2O(1) CO2 (9) HCI(g) - 134.1 3. Master - AG from Free Energies of ...3 pts M - 237.1 - 205.9 4. Apply - Exercise 18.046 Enhanced 3 pt 1req - 237.1 Question - 394.4 5. Apply - Exercise 18.097 Enhanced 5 pt 1req - 95.30 a. For the reaction 2H2 O2 (ag) → O2 (9) + 2H20(1) Standard free energy kJ b. For the reaction COCL2 (9) + H2O(1) → CO2(9) + 2HCI(g) Standard free energy = kJ Submit Answer Retry Entire Group 9 more group attempts remaining Progress: 3/5 groups Due Oct 7 at 02:30 PM (Prevous Ne Next Show Hint Finish Assignment Email Instructor Save and Exit Cengage Learning | Cengage Technical Support
Calculate A,G° for the combustion of benzene at 325 K. 2 C6H6(e) + 15 O2(g) → 12 CO2(g) + 6 H20(8) SpeciesAH° (kJ/mol) S° (J/K mol) C6H6(€ 49.0 173.3 ) O2(g) 0 205.1 CO2(g) -393.5 213.7 H20(E) -285.8 67.0 O -6078 kJ/mol-rxn -8611 kJ/mol-rxn -6386 kJ/mol-rxn +1431 kJ/mol-rxn O -7251 kJ/mol-rxn
A. Directions: On the basis of AG° for each of the following reactions, decide whether the reaction is spontaneous or non-spontaneous. Justify your answer. 1. SOz2g) + 2H2S→ 3S{s) + H2O(g) AG° = -91 kJ 2. 2H2O2(aq) → Ozig) + 2H2O AG° = -211 k) 3. Iz9) + Brz0) → 2IBr(g) AG° = 7.5 k)
Learning Objectives: 1. Calculate the standard entropy changes of a reaction. 2. Identify the spontaneity of a process based on entropy. Substance Kmol 27.3 Fe What you need: Pen and paper. PART A O2 Fe;O3 СаО CO2 CACO 205 87.4 What to do: From the table of the standard entropy values, calculate the standard entropy changes for the following reactions at 25°C. Write your answers in a separate sheet of 39.8 213.6 92.9 193 раper. 1. CaCO3(s) → CaO(s) + CO2(g) 2. N2(g) + 3H2(g) → 2NH3(g) 3. Ha(g) + Cla(g) → 2HCI(g) NH3 N2 H2 192 131 HCI 187 223 Cl
Part c & d please MISSED THIS? Watch IWE: Calculating Change in Free Energy for a Reaction under Nonstandard Conditions ; Read Section 19.9. You can click on the Review link to access the section in your e Text. Consider the evaporation of methanol at 25.0 °C: CH3OH (1)→ CH3OH (g). Part D - AG = Submit VE ΑΣΦ Part C Request Answer PCH₂OH = 110.0mmHg Express the free energy change in kilojoules to one decimal place. PCH₂OH 13.00mmHg Express the free energy change in kilojoules to one decimal place. AG° = Submit ? VE ΑΣΦ Request Answer kJ ? kJ
Calculate AG for the following reaction at 25 °C: 2SO₂(g) + O₂(g) -2SO3 (g) Round your answer to 4 significant digits. Note: Reference the Thermodynamic properties of pure substances table for additional information. rxn kJ mol x10 X Ś
Activity 3. Gibbs Free Energy (LAS 5.a) Learning Objective: Solve problems involving the standard Gibbs free energy. Substance AG° (kJ/mol) What you need: Pen, Paper, Periodic Table of Elements and Calculator. CH4 -50.8 What to do: Calculate the standard free-energy changes for the following reactions at 25°C and interpret the values obtained from the calculations. Write your answers in a separate sheet of paper. 02 CO2 -394.4 1. CHa(g) + 202(g) – CO2(g) + 2H20(1) H2O -237.2 2. 2M9O(s) → 2Mg(s) + O2(g) Mgo -569.6 Mg
For the reactionP4O10(s) + 6H2O(l ) ----> 4H3PO4(aq)ΔG° = -447.8 kJ and ΔS° = -16.3 J/K at 329 K and 1 atm.The maximum amount of work that could be done by this reaction when 1.80 moles of P4O10(s) react at standard conditions at this temperature is _________ kJ.
Question 20 Calculate the entropy of each of the following states. (Figure 1) Figure (b) (c) 1 of 1 ▼ Part A State (a). Express your answer as an integer. S = Submit Part B ΙΕ ΑΣΦ ← S = undo Request Answer State (b). Express your answer using three significant figures. 5 ΑΣΦ ? P Pearson ? J/K J/K Review I Consta duration Inc. All rights reserved. | Terms of Use | Privacy Policy | Permissions | Contact
htActivity.do?locator=Dassignment-take 0 た@ [Review Topics] [References] Use the References to access important values if needed for this question. Consider the following reaction at 298 K. Pb²+ (aq) + H2 (g) → Pb(s) + 2H*(aq) Which of the following statements are correct? Choose all that apply. OAG° >0 O Eell >0 OK<1 On=1 mol electrons %3D OThe reaction is product-favored.
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