O ENTROPY AND FREE ENERGY Nerbs V Calculating reaction entropy using the standard molar entropies... 3/5 Using the thermodynamic information in the ALEKS Data tab, calculate the standard reaction entropy of the following chemical reaction: MgCl, (s) + H,O (1) MgO (s) +2HCI (g) Round your answer to zero decimal places. dh II

O ENTROPY AND FREE ENERGY Nerbs V Calculating reaction entropy using the standard molar entropies... 3/5 Using the thermodynamic information in the ALEKS Data tab, calculate the standard reaction entropy of the following chemical reaction: MgCl, (s) + H,O (1) MgO (s) +2HCI (g) Round your answer to zero decimal places. dh II

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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i need help with these pleasee Consider the reaction: 2NH3(g) +202(g) → N₂O(g) + 3H₂O(1) Using standard thermodynamic data at 298 K, calculate the entropy change for the surroundings when 1.64 moles of NH3(g) react at standard conditions. ΔS Substance AH (kJ/mol) NH3(g) As O₂(g) N₂O(g) H₂O (1) surroundings Consider the reaction: system -46.1 0.0 82.1 -285.8 H₂CO(g) + O2(g) → CO₂(g) + H₂O(1) Using standard absolute entropies at 298 K, calculate the entropy change for the system when 1.63 moles of H₂CO(g) react at standard conditions. J/K J/K Substance Sº (J/K mol) H₂CO(g) 219.0 0₂ (9) 205.1 CO₂(g) 213.7 H₂O(l) 69.9 SUVIL
Predict if the reaction happens spontaneously by calculating the standard entropy (ASrxn), entropy of the surroundings (ASsurr), and entropy of the universe (ASuniv) of the reaction at 250C: Hz(g) + CuO(s)_ + Cu(s) + H20(g) AHre= -86.6 kJ
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es) Qualitatively predicting reaction entropy For each chemical reaction listed in the first column of the table below, predict the sign (positive or negative) of the reaction entropy AS If it's not possible to decide with the information given, check the "not enough information" button in the last column. Note for advanced students: Assume the temperature remains constant. Assume all gases and solutions are ideal. reaction N₂(g) + 3H₂(g) → 2NH, (e) 4Fe()+30.)- 2Fe₂O, (s) N. (3), (g) 2NH, (g) sign of reaction entropy 04 ron reaction <<0 50 not enough information. 45x 250 <<0 not enough information. 450 50 not enough information. Using the general properties of Gibbs free energy The standard reaction free energy AG" --835. kJ for this reaction: 2 Al(s) + Fe₂O3(s)-Al₂O3(s) + 2 Fe(s) Use this information to complete the table below. Round each of your answers to the nearest kJ. BALAKEN F04 AGO Focus
Using the thermodynamic information in the ALEKS Data tab, calculate the standard reaction entropy of the following chemical reaction: C,H; (g) + 50, (g) - 3CO, g) + 4H,0 (1) Round your answer to zero decimal places. J x10 K
Using the thermodynamic information in the ALEKS Data tab, calculate the standard reaction entropy of the following chemical reaction: CH,OH (g)+CO (g) → HCH,CO₂ (1) Round your answer to zero decimal places. -0 K X
1) Predict the sign (+ or -) of the entropy for the system and justify your answer. H2 (g) + ½ O2 (g) → H2O (l) 2) Calculate the entropy change for each of the above using your data tables. H2 (g) + ½ O2 (g) → H2O (l) ΔS° =? Note: Please answer number 1 and 2 Thank you.
Using the thermodynamic information in the ALEKS Data tab, calculate the standard reaction entropy of the following chemical reaction: Al,03 (s)+ 3H, (g) → 2Al (s) + 3H,O (g) Round your answer to zero decimal places. x10 K
Using the thermodynamic information in the ALEKS Data tab, calculate the standard reaction entropy of the following chemical reaction: SnO, (s) +2CO (g) → Sn(s, white)+2CO, (g) Round your answer to zero decimal places. Ox10 K
Consider the reaction: 6CO2(g) + 6H₂O(l) → C6H12O6 + 602 (9) Using standard thermodynamic data at 298 K, calculate the entropy change for the surroundings when 1.87 moles of CO₂ (g) react at standard conditions. AS⁰ Substance AH (kJ/mol) CO₂ (g) -393.5 H₂O(1) -285.8 C6H12O6 -1275.0 O₂(g) 0.0 surroundings J/K
A chem.. ngineer is studying the two reactions shown in the table below. In each case, he fills a reaction vessel with some mixture of the reactants and products at a constant temperature of 52.0 °C and constant total pressure. Then, he measures the reaction enthalpy AH and reaction entropy AS of the first reaction, and the reaction enthalpy AH and reaction free energy AG of the second reaction. The results of his measurements are shown in the table. Complete the table. That is, calculate AG for the first reaction and AS for the second. (Round your answer to zero decimal places.) Then, decide whether, under the conditions the engineer has set up, the reaction is spontaneous, the reverse reaction is spontaneous, or neither forward nor reverse reaction is spontaneous because the system is at equilibrium. AH = 181. kJ J AS = 557. K N, (g) + 0, (g) → 2NO (g) AG = N, (g) + 0,(8) kJ Which is spontaneous? this reaction the reverse reaction neither ΔΗ - - 1353. kJ J AS = K 2CH,OH (g) + 30,(g)…
Estimate the entropy change for the reaction: 2NO2 (g) + N204 (g) Standard entropy and enthalpy of formation S (U/mol K) Species H>(8) H(g) O:(8) O(g) N:(g) N(g) NO(g) H,O (g) H;0 (1) N,0 (g) NO2 (g) N2O N,Os(g) N20s(s) NHANO,(s) AH", (kJ/mol) 130.6 114.6 218.0 205 161 249.2 191.5 153.2 472.7 210.7 90.25 188.7 -241.8 69.91 -285.8 219.7 82.05 240.0 33.2 304.2 9.2 356 11 178 -43.1 151.1 -365.6