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Predict the sign, increasing (+) or decreasing (-), of the entropy change (AS): + H2CO3 (aq)...
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31 - 34. Select your answer below. (1pt. ea) 4 points (1 pt.ea.) Predict the sign, increasing (+) or decreasing (-), of the entropy change (AS): 31) 2CH2 (g+ 5O2 (g) + 4CO2 (g) + 2H,0 g) 32) CO2 (g) + H,0 ) H2CO3 () 33) KNO3 (9) + Κ 34) ΝΟ (g+ 2HNO3) + H,0 0 + 3NO2 (g) (aq) + NO3 (aq) Increasing (+) Decreasing (-) Neither 31) 32) Ο Ο Ο Ο Ο Ο Ο...
( 2 of 6 Constants Periodic Table Predict the sign of the entropy change, AS, for each of the reaction displayed. Drag the appropriate items to their respective bins. View Available Hint(s) Reset Help P«(8) + 509 (8)–P,010 (8) 2002(8)=+N3(8) + 202(8) Ba?+ (aq) +50,- (aq) --BaSO. (*) CaCO3(s)+CaO (s) + CO2(g) CH3(g) +502(g) → 3C02(g) + 4H2O(g) H20(1) --H2O(g) Positive Negative
Predict the sign of the entropy change, ASⓇ, for each of the reaction displayed. Drag the appropriate items to their respective bins. View Available Hint(s) Reset Help C4H3(g) +602(g) → 4CO2(g) + 4H2O(g) 2NaClO3(s) +2NaCl(s) + 302(g) P4(g) +502 (g)P4010(s) 2N2O5 () 4NO2(g) + O2(E) CH3OH(1)—-CH3OH() Ba2+ (aq) +SO,?- (aq) --BaSO4(5) Positive Negative
Predict the sign of the entropy change, ΔS∘, for each of the reaction displayed. Ba2+ (aq) + SO42- (aq) --> BaSO4 (s) 2NO2 (g) --> N2 (g) + 2O2 (g) C5H12 (g) + 8O2 (g) --> 5CO2 (g) + 6H2O (g) 2NaClO3 (s) --> 2NaCl (s) + 3O2 (g) 2Na (s) + Cl2 (g) --> 2NaCl (s) CH3OH (l) --> CH3OH (g)
Match each process below with the sign of the entropy change for the process. - A. B. C. D. 1 mole of gas is cooled from 100 °C to 50 °C - A. B. C. D. 2C2H2 (g) + 5O2 (g) -------> 4CO2 (g) + 2H2O (g) - A. B. ...
Predict the sign of the entropy change, ΔS∘, for each of the reaction displayed. Drag the appropriate items to their respective bins. Pb2+(aq)+2Cl−(aq)→PbCl2(s) CaCO3(s)→CaO(s)+CO2(g) 2NH3(g)→N2(g)+3H2(g) 2Mg(s)+O2(g)→2MgO(s) C5H12(g)+8O2(g)→5CO2(g)+6H2O(g) H2O(l)→H2O(g) Positive Negative
Question 7 Predict change in entropy for H2 + O2 --> 2H20 (1 point) negative none O positive O zero Question 8 Predict change in entropy for Fe(s)+ HCl(aq)--> H2(g) + FeCl2(aq) (1 point)* negative none positive zero
IV) Which is the best explanation for the negative sign of ASº in the following reaction? CaSO4(s) → Ca2+(aq) + SO42- (aq) AS° =-143 J mol-1 K -1 (A) There are more ways of arranging the Ca2+ and SO42- ions in aqueous solution than in the crystal lattice. (B) Solid CaSO4 is a network covalent solid, whereas it separates into ions in aqueous solution. (C) Aqueous Ca2+ and SO42- ions are tightly solvated, decreasing the number of ways of arranging...
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3. Calculate the standard enthalpy change, Hº, for the following reaction using standard enthalpies of formation. (1 point) 2C2H2(g) + 502(g) → 4CO2(g) + 2H20(1) Standard Enthalpies of Formation AH for C2H2(g) = +226.7 kJ/mol AHfor CO2(g) = -393.5 kJ/mol AH for H2O(l) = -285.8 kJ/mol
Use standard enthalpies of formation to determine ΔHorxn for: 1. 3NO2(g) + H2O(l) → 2HNO3(aq) + NO(g) (Enter in kJ.) 2. Find the change in internal energy for this reaction. Enter in kJ. Use standard enthalpies of formation to determine ΔHorxnfor: 3. 2C2H2(g) + 5O2(g) → 4CO2(g) + 2H2O(l) (Enter in kJ.) 4. Find the change in internal energy for this reaction. Enter in kJ. Use standard enthalpies of formation to determine ΔHorxn for: 5. 2NH3(g) + 3O2(g) + 2CH4(g)...