<- Part AThe value of AH" for the reaction below is -186 kJ.H2 (g) + Cl2 (g) → 2HCI (g)The value of AH, for HCI (g) iskJ/mol.-1.27 x 102-1860-93.0+186O-3.72 x 102SubmitRequest AnswerProvide FeedbackSC<1@2QWσ#3$4A4%a15MacBook Pro66ERTY&7

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Answered: <- Part A The value of AH" for the…

Chemistry for Engineering Students

4th Edition

ISBN:9781337398909

Author:Lawrence S. Brown, Tom Holme

Publisher:Lawrence S. Brown, Tom Holme

Chapter10: Entropy And The Second Law Of Thermodynamics

Section: Chapter Questions

Problem 10.86PAE: The enthalpy of vaporization for water is 40.65 kJ mol-1. As a design engineer for a project in a...

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The enthalpy of vaporization for water is 40.65 kJ mol-1. As a design engineer for a project in a desert climate, you are exploring the option of using evaporative cooling. (a) If the air has an average volumetric heat capacity of 0.00130 J cm-3 K-1, what is the minimum mass of water that would need to evaporate in order to cool a 5 m? 5 m room with a 3 m ceiling by 5°F using this method? (b) Is this a spontaneous or nonspontaneous process?
← → C 11 app.101edu.co STARTING AMOUNT X 2 What is the change in enthalpy when 1.50 moles of H₂ are reacted with an excess O₂ of according to the following balanced chemical reaction: -381 mol H₂ ADD FACTOR x( ) 381 g 0₂ 2 -572 kJ Question 8 of 19 2 H₂(g) + O₂(g) → 2 H₂O(1) -429 ΔΗ = -572 kJ 1.50 g H₂O 32.0 1 ANSWER mol O₂ 429 2 mol H₂O RESET J 3 18.02 2.02 g H₂ M Update: Submit +
Given the data in the table below, AHrxn for the reaction Ca(OH); + 2H;AsO4 → Ca(H;AsO4)2 + 2H;O is _ kJ. [A] -4219 (B] -130.4 [C] -4519 [D] -76.4 AH, (kJ/mol) -986.6|| Substance Ca(ОН), HASO, Ca(H;AsOa)2 -900.4 -2346.0 H;0 -285.9 O A В C D
A pellet of benzoic acid standard was combusted in a bomb calorimeter to determine the experimental calorimeter constant. After 6 mins of monitoring the temperature, the bomb was fired. The following data were obtained. mole of benzoic acid: 0.0049 mol mass of burnt fuse wire: 0.0116 g qwire,surr: 5858 J/g AHcombustion Of benzoic acid: -3228.0 k|/mol Ang (combustion of benzoic acid): -0.5 mol R: 8.314 J/mol•K r;: 0°C/min r2: 0°C/min Tf. 30.4°C T: 28.4°C Determine the calorimeter constant (in J/°C). Report your answer in 2 decimal places.
3. Heats of reaction can also be calculated using heats of formation and the relationship - AHrxn = ΣnAHƒ.prod — ΣmAHƒ.reac Substance HCl(aq) MgCl2(aq) MgO(s) H₂O(/) H.(kJ/mol) -167.2 -796.8 -601.2 -285.8 0 a. Standard State Elements Calculate the theoretical AH° values for the following reaction Mg(s) + 2HCl(aq) → MgCl2(aq) + H2(g) MgO(s) + 2HCl(aq) → MgCl2(aq) + H2O(l) Mg(s) + O2(g) → MgO(s)
By HGG) +3029)-B20g6) + 3H20G) AH=-2035 kJ What is AH when 10-0g 82H6 is.mixed with 10-0g 02 ?
Calculate the AH for the reaction C,H,, +H2 → C,H, e), from the following data. C,H + 3 02 e →2 CO2 +2 H,O C,Hse + 7/2 0,→ 2 CO, +3 H,Ö, H2 + 1/2 O, e H¸O 0 ДН--1411 КJ AH= -1560 KJ (e) (): (1) ДН--285.8 КJ (E) → 4 NO+ 6 H,0 , from the following data. Calculate the AH for the reaction 4 NH, a +5 0, N +0, → 2 NO 2 (2) → 2 NH3 N2+3 H2 2 H e +02e AH= -180.5 KJ AH= -91.8 KJ → 2 H,0 AH= -483.6 KJ
Using the following reactions: AH = -1010 k) (1) 2NH3e + N2Og - 4N2e + 3H2O) (2) 4NH3e + 30ze → 2N2g) + 6H2O AH for the reaction : N2e) + ½ Oze) - N2Og is AH = -1531 kJ kJ.
esc W Н H: | PF | Pr | HGwGwGta WHGW (3 il MOC2 |O|A| app.101edu.co Week 4 Lab 3....docx If 50.5 g of KBr are dissolved in 400.0 g of water at 25.0 °C in an insulated container, a temperature change is observed. The AH of solution of KBr is 19.9 kJ/mol. Assuming that the specific heat of the solution is 4.184 J/(g °C), and that no heat is gained or lost by the container, what will be the final temperature of the solution? 1 F1 Q 2 F2 W 3 20 F3 W E की व 4 000 DOO F4 R do L % 5 F5 Question 16 of 28 MacBook Air T 6 F6 & Y 7 F7 U DII 8 FB
Another way to calculate AH values that cannot be measured experimentally is with standard heats of formation. a) Using the AH values provided, calculate AH for NaC,H,O,(s) + 3 H₂O(1) NaC,H,O, 3H₂O(S) with the equation: AH (reactants) f NaC,H,O,(s) NaC,H,O, 3H₂O(s) H₂OO) AH (kJ/mol) - 708.8 1604 285.8 - Pend IXI ΔΗ° = Σ η ΔΗ (products) – Σ n P f
Q3// For the reaction bellow: C„H(2n+2) + a(02 +3.76 N2)- nC0, + (n+ 1)H,0 + 3.76a N2 If the heat of combustion writing as: Qe = 618.49 n + 187. 83 And the mole fraction of CO, in products is Xco, 1. Type of fuel. (KJ/mole of fuel) 25 • find: 227 2. Heat of combustion 3. If n=4, find the mole fractions of CO, H;0 and N,
MindTap Cengage Learnir X G To analyze the reaction, firs X deploymentid=5735112480241329813180832311&eISBN=9781305862883&id=1774598910&snapshot!... Bb DO: MLM HW 2.5- Blackbe X Use the References to access important values if needed for this question. The enthalpy change for the following reaction is -121 kJ. CH4(g) + Cl₂(g) →→→ CH3CI(g) + HCl(g) a To analyze the reaction, first draw Lewis structures for all reactant and product molecules. 0- • Draw the reaction using separate sketchers for each species. • Separate multiple reactants and/or products using the + sign from the drop-down arrow. • Separate reactants from products using the symbol from the drop-down menu. • Remember to include nonbonding valence electrons in your Lewis structures. ✔1/826RQA References ///.000-F ChemDoodle kJ/mol b Estimate the C-H bond energy in CH4(9), using tabulated bond energies (linked above) for the remaining bonds. C-H bond energy = Submit te Bond Energy from Enthalpy of Reaction - Draw Lewis: This…

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<- Part A The value of AH" for the reaction below is -186 kJ. H2 (g) + Cl2 (g) → 2HCI (g) The value of AH, for HCI (g) is kJ/mol. -1.27 x 102 -186 0-93.0 +186 O-3.72 x 102 Submit Request Answer Provide Feedback SC < 1 @ 2 Q W σ #3 $ 4 A4 % a15 MacBook Pro 66 E R T Y & 7