[Review Topics][References]Use the References to access important values if needed for this question.Consider the reaction:2H2(g) + O2(g)–→2H;0(g)Using standard absolute entropies at 298K, calculate the entropy change for the system when 2.19 moles of H,(g) react at standard conditions.AS,systemJ/KSubmit AnswerRetry Entire Group8 more group attempts remaining(PreviousNextSave and ExiccricutetvllMacBook AirDDF12F11F10888F9F8F7F6F5F4)&$%78.9.45{YUHK.T< COR

The chemical equation provides information about the nature of the participating compound, the…

[Review Topics] [References) Use the References to access important values if needed for this question. Consider the reaction: 2H2(g) + O2(g)–2H,O(g) Using standard absolute entropies at 298K, calculate the entropy change for the system when 2.19 moles of H2(g) react at standard conditions. AS° J/K system Submit Answer Retry Entire Group 8 more group attempts remaining

[Review Topics] [References) Use the References to access important values if needed for this question. Consider the reaction: 2H2(g) + O2(g)–2H,O(g) Using standard absolute entropies at 298K, calculate the entropy change for the system when 2.19 moles of H2(g) react at standard conditions. AS° J/K system Submit Answer Retry Entire Group 8 more group attempts remaining

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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ellus_engine.html?ClassID=1246112631# dent Orie. Using the data below, calculate the entropy for the decomposition of sodium bicarbonate. 2NaHCO3(s) → Na»CO3(s) + H2O(g) + CO2(g) Compounds S (J/mol-K) AHf° (kJ/mol) NaHCO,(s) Na,CO,(s) Co,(g) H,0(g) ASxn = [ ? ] J/K 102 -948 136 -1131 214 -394 189 -242 Enter either a + or - sign AND the magnitude. Entropy (J/K) Enter
Consider the reaction: Fe₂O3 (8) + 3H2(g) →2Fe(s) + 3H₂O(g) Using standard thermodynamic data at 298 K, calculate the entropy change for the surroundings when 2.31 moles of Fe₂O3 (8) react at standard condit AS Substance AH (kJ/mol) Fe₂O3 (8) H₂ (9) Fe(s) H₂O(g) surroundings -824.2 0.0 0.0 -241.8 J/K
(a) In a chemical reaction 3 moles of one gas and 2 moles of a second gas react to form 5 moles of a third gas. Would you expect AS to be positive, negative, or close to zero for this reaction? AS for this reaction should -Select- v (b) In which of the processes described below should the entropy increase? Choose all of the correct possibilities. O ice cubes melting at -5 °C and 1 atm pressure O the reaction of sodium metal with chlorine gas to form solid sodium chloride Oformation of CH4(9) and O₂(g) molecules from CO₂(g) and H₂O(l) at room temperature and 1 atm pressure O a spark causes hydrogen and oxygen gases mixed in a balloon to react explosively separating a mixture of nitrogen and oxygen gases into pure nitrogen and pure oxygen
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Use the table below to answer the questions that follow. The value of standard entropy change, AS°, for the following reaction, H2(g) + Br2(1) → 2 HBr(g) is J/K. Standard Thermodynamic Properties for Selected Substances Substance AH (kJ mol-) AG; (kJ mol-1) S° (JK-1 mol bromine Br2() 152.23 Br2(g) 30.91 3.142 245.5 Br(g) 111.88 82.429 175.0 Br(aq) -120.9 -102.82 80.71 BRF3(g) -255.60 -229.45 292.42 HBr(g) -36.3 -53.43 198.7
Part B Calculate the standard entropy change for the reaction 2H2(9) + 02(9)-2H20() using the data from the following table: TE Substance Ar H° (kJ mol-1) AG (kJ mol1) s° (JK- mol-1) H2(9) 0.00 0.00 130.8 Oz(9) 0.00 0.00 205.0 H20() -285.8 -237.2 60.90 Express your answer to four significant figures and include the appropriate units. • View Available Hint(s) Tempjetes Symbols Undo redo Peset keyboard shortcuts Help A,s° = Value Units Submit
Consider the reaction: 2H₂S(g) + 302 (g) → 2H₂O(1) + 2SO2 (g) Using standard absolute entropies at 298 K, calculate the entropy change for the system when 1.90 moles of H₂S(g) react at standard conditions. AS⁰ system Substance So (J/K mol) H₂S(g) 205.8 O₂(g) 205.1 H₂O(l) 69.9 SO₂(g) 248.2 = J/K
Consider the reaction: C,H4(g) + H,0(g)→CH3CH,OH(g) Using standard absolute entropies at 298K, calculate the entropy change for the system when 1.71 moles of C2H¼(g) react at standard conditions. AS° system J/K
plz explain with clear steps :) this was rejected prior due to an "honor code" violation. What fucking retard thinks that an optional "self assesment" violate the honor code...
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Consider the reaction HCI(g) + NH3(9) NH4Cl(s) Using standard thermodynamic data at 298K, calculate the entropy change for the surroundings when 2.41 moles of HCI(g) react at standard conditions. AS surroundings = J/K Submit Answer Retry Entire Group 8 more group attempts remaining