Now consider the following set of reactions: 1. CO + 02-→CO2 , AH= -283 kJ/mol 2. C + 02→0CO2 , AH=-393 kJ/mol Part A The equations given in the problem introduction can be added together to give the following reaction: overall: C + O2→CO However, one of them must be reversed. Which one? • View Available Hint(s) reaction 1: C0 + ÷O2→CO2 reaction 2: C + O2→CO2

Now consider the following set of reactions: 1. CO + 02-→CO2 , AH= -283 kJ/mol 2. C + 02→0CO2 , AH=-393 kJ/mol Part A The equations given in the problem introduction can be added together to give the following reaction: overall: C + O2→CO However, one of them must be reversed. Which one? • View Available Hint(s) reaction 1: C0 + ÷O2→CO2 reaction 2: C + O2→CO2

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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MISSED THIS? Read Section 19.8 (Pages 871 - 877); Watch IWE 19.6. Liquid methanol burns in oxygen to form gaseous carbon dioxide and gaseous water. Substance H° (kJ/mol) S° (J/(mol. K)) CH3OH (1) -238.6 126.8 O2 (g) 0 CO₂ (g) -393.5 CO2(aq) -413.8 H₂O(g) -241.8 H₂O(1) -187.8 205.2 213.8 117.6 188.8 70.0 stan 1 Periodic Liquid methanol (CH3OH(1)) burns in oxygen (O₂ (g)) to form gaseous carbon dioxide (CO2 (g)) and gaseous water (H₂O(g)), which is represented by the following balanced equation: 2CH3OH(1) +302(g) → 2CO2 (g) + 4H₂O(g) The balanced chemical equation is neeed to calculate the standard enthalpy change for a reaction (AH) the standard entropy change for a reaction (AS) from the standard enthalpies of formation and standard molar entropies, respectively. Part B Calculate AHxn at 25 °C. Express your answer in kilojoules to three significant figures. AH = VE ΑΣΦ C ? kJ
Using the reaction and information provided below, calculate the value for AG at 15°C. The initial pressure of NO, is 0.003 atm, and the initial pressure of O, is 0.21 atm. 2 N,05 (s) 5 4 No2 (g) + 02 (g) AG;° (kJ/mol) N205 (s) 117.7 NO2 (g) 51.8 O2 (g) 0.
Calculate the Gᵒrxn using the following information. AHᵒf (kJ/mol) S°(J/mol*K) 4 HNO3(g) +5 N2H4(1) → 7 N2(g) + 12 H₂O(1) -133.9 50.6 -285.8 266.9 121.2 70.0 +4.90 x 10³ kJ +3.90 x 103 kJ -2.04 x 10³ kJ -3.15 x 103 kJ -3.30 x 10³ kJ 191.6 AG rxn =?
Is reaction 1 or 2 reversed ?
Consider the reaction2SO2(g) + O2(g)->2SO3(g)Using the standard thermodynamic data in the tables linked above, calculate deltaGrxn for this reaction at 298.15K if the pressure of each gas is 39.97 mm Hg.ANSWER: kJ/mol
When LiBr dissolves in water the AHsolution = -49 kJ/mol The sum of the AHhydration of Lit and Br is -868 kJ/mol Using these data, what is the AH for the reaction Lite () + Brg) → LiBr(s) -819 kJ/mol -917 kJ/mol cannot be determined
↓ C 61 www-awu.aleks.com/alekscgi/x/Isl.exe/10_u-IgNslkr/j8P3JH-IBIW/RWJANXkdof_rJh6yG8DdLLnTcjQCBcl = O Chemical Reactions Using the general properties of reaction enthalpy A chemist measures the enthalpy change AH during the following reaction: 2 H2O(l) + O2(g) →2 H₂O₂(1) AH=196. kJ Use this information to complete the table below. Round each of your answers to the nearest kJ. reaction 2H₂O₂(1) → 2H₂O(/) + O2(g) ΔΗ □×1 x10 kJ 1 2 H₂O(l) + O2(g) → H₂O₂(1) 0kJ 4H₂O₂(1) 4H2O(l) + 202(g) 0kJ G