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Predict the sign, increasing (+) or decreasing (-), of the entropy change (AS): + H2CO3 (aq)...
answer all 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...
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
( 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, 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)
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
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...
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
help asap 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
Which of the following is a redox reaction? H20 (1) + CO2 (s) - H2CO3(aq) 4K(s) + O2(g) 2 K20 (aq) Na2SO4 (aq) + Pb(NO3)2 (aq) - PbSO4 (s) + 2 NaNO3(aq) HBr (aq) + KOH(aq) -H20 (1) + KBr (aq)
Predict the sign of AS for each of these changes. a) O2 (g) → O2 (aq) b) C.H. (8) → C.H. (1) - c) C(s) + CO2(g) → 2 CO (g) d) C12H22011 (8) ► 12H2011 (aq) e) 2 NO2(g) → N.04 (g) 2) Indicate the correct type of process for the following: Process Spontaneous Non-Spontaneous 1. Melting of ice cubes at -5°C and 1 atm pressure 2. Dissolution of sugar in a cup of hot coffee 3. Reaction of...