3) Use the standard entropy tables to determine AS for the following reactions. Give a reason...
18.74 Predict the algebraic sign of the entropy change for the following reactions. (a) 12(s) → 12(g) (b) Brz(g) + 3Cl2(g) → 2BrCl3(g) (C) NH3(g) + HCl(g) → NH CI(s) (0) CaO + H2O) + Ca(OH)2(s)
Predict whether the entropy change is positive or negative for each of the following reactions. Give reasons for your predictions. a. 2 KClO4(s) + 2 KClO3(s) + O2(g) b. H2O(g) → H20(1) c. 2 Na(s) + 2 H20(1) ► 2 NaOH(aq) + H2(g) d. N2(g) → 2 N(g)
3. Predict the sign (positive or negative) on the entropy change for each of these reactions. (a) 2 SO2 (g) + O2 (g) → 2 SO3 (g) Negative (b) 2 NH3 (g) → N2 (g) + 3 H2 (g) (c) CO (g) + 2 H2 (g) → CH3OH (1) 4. For the reaction: 2NO2 (g) + N204 (g) at 298 K, The value of AH° and AS™ are -58.03 kJ and -176.6J/K, respectively. (a) What is the value of AG°...
Short Answer: (4 points each) 1.) Predict whether the entropy change is positive or negative for each of the following reactions. GIVE YOUR REASON FOR YOUR PREDICTIONS a) 2KC1O4(s) → 2KCIO3() + O2(8) b) H2O → H2O) c) 2Na(3) + H2O → 2NaOH(aq) + H2() d) N2(g) → 2N) 2.) State whether the sign of the entropy change expected for each of the following processes will be positive or negative, and EXPLAIN YOUR PREDICTIONS. a) PC130) + Cl2(e) → PCls(s)...
Buckboard quem cumpretrom Icarus. Which one of the following reactions or processes has a negative entropy change? A. BF3(g) + NH3(g) → F3BNH3(5) B. 2 503(g) - 2 SO2(g) + O2(g) C. 2NH4NO3(s) - 2 N2(g) + 4 H2O(g) + O2(g) D. 2 NH3(g) → N2(g) + 3 H2(g) E. H2011) H2O(g)
Does the entropy of the system increase or decrease for the following reactions? (1) Ba2+(aq) + S042"(aq) -- BaSO4(s) (11) 2 Na(s) + 2 H2O(1) 2 NaOH(aq) + H2(g) (III) 2 C2H6(g) + 7 O2(g) - 4CO2(g) + 6 H2O(1)
For which one of the following reactions will the enthalpy change be approximately equal to the internal energy change? 2 NaN3(s) → 2 Na(s) + 3 N2(g) 2 H2O( ℓ ) → 2 H2(g) + O2(g) 2 Sb(s) + 3 I2(g) → 2 SbI3(s) Ca(NO3)2(aq) + 2 NH4Cl(aq) → CaCl2(aq) + 2 NH4NO3(aq) CaCO3(s) → CaO(s) + CO2(g)
Based on a simple inspection of the following reactions, state whether entropy would increase (1) or decrease (1) and briefly state why. a)Br2(g)>2Brg) b) 2Mg(s) + O2(g) >2MgO (9) c) NH4Cl → NH4+ (aq)+ Cl(aq) d) CaO + H2O + Ca(OH2(s) e) 2NaCl → 2Na(1) + Cl2()
Which reaction is accompanied by an increase in entropy? A N2(g) + 3 H2(g) – 2 NH3(g) B. Ba(OH)2(s) + CO2(g) → BaCO3(s) + H2O(1) C. NH4NO2(s) – N2(g) + 2 H20(0) D.2 C2H2(g) + 5 O2(g) – 4 CO2(g) + 2 H2O(s) E. C8H16(1) + 12 O2(g) — 8 CO2(g) + 8 H 20(1)
44" What is the sign of ΔΗ (system) and AS (system) if a chemical reaction is spontaneous at all temperatures under stan conditions? a. AH (system) is negative, and ΔS (system) is positive. b. AH (system) is negative, and AS (system) is negative. C. AH (system) is positive, and AS (system) is positive. d. AH (system) is positive, and AS (system) is negative. e. none of these 45. For which of the following reactions will the entropy of the system...