i app.101edu.co 1School SWGOH MSF SWTOR Amazon Noodle Bills Possible Purchases E Reading list Question 31 of 31 Submit For a reaction for which AH = +29.3 kJ/mol and AS = +106 J/mol·K, which of the following statements is true? A) The reaction is spontaneous above 276 K. B) The reaction is spontaneous below 276 K. C) The reaction will never reach equilibrium. D) The reaction will never be spontaneous.

i app.101edu.co 1School SWGOH MSF SWTOR Amazon Noodle Bills Possible Purchases E Reading list Question 31 of 31 Submit For a reaction for which AH = +29.3 kJ/mol and AS = +106 J/mol·K, which of the following statements is true? A) The reaction is spontaneous above 276 K. B) The reaction is spontaneous below 276 K. C) The reaction will never reach equilibrium. D) The reaction will never be spontaneous.

Physical Chemistry

2nd Edition

ISBN:9781133958437

Author:Ball, David W. (david Warren), BAER, Tomas

Publisher:Ball, David W. (david Warren), BAER, Tomas

Chapter22: Surfaces

Section: Chapter Questions

Problem 22.43E

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(a) The ionization energy of potassium (K) is 4.34 eV and the electron affinity of chlorine (Cl) is -3.61 eV. The Madelung constant for the KCl structure is 1.748 and the distance between ions of opposite sign is 0.314 nm. On the basis of these data only, compute the cohesive energy of KCl per ion pair. (b) The observed cohesive energy of KCl is 6.42 eV per ion pair. On theassumption that the difference between this figure and that obtained in (a) is due to the exclusion principle repulsion, find the exponent n in the formula Br^-n for the potential energy arising from this source.
Consi‎der follo‎wing rea‎ction: HgO (s) -> Hg(l) + ½ O2 (g) Delta H = +90.7 kj/mol. Wh‎at qua‎ntity of h‎eat in kj/mol is req‎uired to prod‎uce on‎e m‎ole HgO? Wri‎te your answer wit‎hout units. Gi‎ven the fol‎lowing data 2Cl‎F(g) + O‎2(g) --> Cl2‎O(g) + F2‎O (g) De‎lta H= 167.4 kJ I 2Cl‎F3(g) + 2O‎2(g) --> Cl‎2O(g) + 3F2‎ O (g) Delta H= 341.4 kJ II 2 ‎F2(g) + O‎2(g) ---> 2F2O‎ (g) Delt‎a H= -43.4 kJ III Calc‎ulate the de‎lta H in kJ for below‎ reaction: ClF(g) + F2(g) ---> ClF3(g)
1. Calculate the heat evolved when 13.56g of oxygen gas (O2) is used to burn white phosphorus at standard temperature and pressure according to the equation: P4(s) + 5O2(g) → P4O10(s), ΔH = -3013 kJ/mol2. Calculate the ΔH for the reaction: B2H6(g) + 6Cl2(g) → 2BCl3(g) + 6HCl(g)The following are given:a. BCl3(g) + 3H2O(l) → H3BO3(g) + 3HCl(g) ΔH = -112.5 kJb. B2H6(g) + 6H2O(l) → 2H3BO3(g) + 6H2(g) ΔH = -493.4 kJc. 1/2H2(g) + 1/2Cl2(g) → HCl(g) ΔH = -92.3 kJ
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In 1995, Mario Molina, Paul Crutzen, and F. SherwoodRowland shared the Nobel Prize in chemistry for their work onatmospheric chemistry. One of several reaction sequences pro-posed for the role of chlorine in the decomposition of strato-spheric ozone is (1) Cl(g) +O3(g)→ ClO(g) +O₂(g) (2) ClO(g) +ClO(g)→ Cl₂O₂(g) (3) Cl₂O₂→ (g)2Cl(g)+ O₂(g).Over the tropics, O atoms are more common in the stratosphere:(4) ClO(g) +O(g)→ Cl(g) +O₂(g).(a) Which, if any, of these are oxidation-reduction reactions?(b) Write an overall equation combining reactions 1–3
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matter eith constant composition in its structure is classified as?
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For the isomerization of CH3NC, Ea = 161.0 kJ/mol and k = 0.4100 at 600.0 K. At what temperature (Kelvin scale) is k = 29.54 s−1?
Calculate ΔHo for the process Zn(s) + S(s) + 2 O2(g) → ZnSO4(s) from the following information Zn(s) + S(s) → ZnS(s) ΔHo = -122.9 kJ/mol ZnS(s) + 2 O2(g) → ZnSO4(s) ΔHo = -571.6 kJ/mol

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