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Which of the reactions are exothermic? W\ce{2Mg (s) +0_2(g) -> 2MgO (8) }{\quad \quad \quad \quad\quad...
Which of the reactions are exothermic? 2Mg(s)+O2(g)⟶2MgO(s)+heat2Mg(s)+O2(g)⟶2MgO(s)+heat NH3(g)+HCl(g)⟶NH4Cl(s)+heatNH3(g)+HCl(g)⟶NH4Cl(s)+heat AgCl(s)+heat⟶Ag+(aq)+Cl−(aq)AgCl(s)+heat⟶Ag+(aq)+Cl−(aq) 2Fe2O3(s)+3C(s)+heat⟶4Fe(s)+3CO2(g)2Fe2O3(s)+3C(s)+heat⟶4Fe(s)+3CO2(g) C(graphite)+O2(g)⟶CO2(g)+heatC(graphite)+O2(g)⟶CO2(g)+heat CH4(g)+2O2(g)⟶CO2(g)+2H2O(l)+heat
Consider the following reaction which is at equilibrium at 25 degree C: NH_4(NH_2CO_2)(s) 2 NH_3(g) + CO_2(g), delta H degree = 152.2 kJ In which direction will the reaction shift if? *(a) the pressure is increased (b) the pressure decreased (c) the temperature is increased (d) the temperature is decreased (e) some CO_2 is added (f) NH_3 is removed (g) a catalyst is added (h) some NH_4(NH_2CO_2) is added (i) some Ne is added; and, (j) the volume is increased
Answer the following dont worry about 8 produce magnesium burns in. A 2Mg(s).O2(g) -- 2MgO() moles of O2 are consumed when 1.90 mol of B) 1.05 C) 0.950 of magnesium burns How many moles of, are consumed. A) 1.90 D) 0.0782 NO decomposer accon en are formed when 58.6 g of KNO, de ass of KNO3 is 101.11 g/mol. 9) How many moles of oxygen are formed when Kollowing reaction? The molar mass of KNO3 is 101.11 4 KNO3(s) --2...
Which of the reactions are exothermic? 2 Mg(s) + 0, (g) 2 MgO(s) + heat NH, (g) + HCl(g) NH,Cl(s) + heat AgCl(s) + heat — Ag+ (aq) + CI+ (aq) 2 Fe2O3(s) + 3 C(s) + heat - 4Fe(s) + 3 CO2(g) C(graphite) + O2(g) — CO2(g) + heat CH,(g) + 2O2(g) — CO2(g) + 2 H2O(1) + heat about us Careers privacy policy terms of use contact us help %
Given the standard enthalpy changes for the following two reactions:(1) \(2 \mathrm{C}(\mathrm{s})+2 \mathrm{H}_{2}(\mathrm{~g}) \longrightarrow \mathrm{C}_{2} \mathrm{H}_{4}(\mathrm{~g}) \quad \Delta \mathrm{H}^{\circ}=\mathbf{5 2 . 3} \mathrm{kJ}\)(2) \(2 \mathbf{C}(\mathbf{s})+\mathbf{3 H}_{\mathbf{2}}(\mathbf{g}) \longrightarrow \mathbf{C}_{\mathbf{2}} \mathbf{H}_{\mathbf{6}}(\mathbf{g}) \quad \Delta \mathrm{H}^{\circ}=-\mathbf{8 4 . 7} \mathrm{kJ}\)what is the standard enthalpy change for the reaction:(3) \(\mathbf{C}_{\mathbf{2}} \mathbf{H}_{\mathbf{4}}(\mathbf{g})+\mathbf{H}_{\mathbf{2}}(\mathbf{g}) \longrightarrow \mathbf{C}_{\mathbf{2}} \mathbf{H}_{\mathbf{6}}(\mathbf{g}) \quad \Delta \mathrm{H}^{\circ}=?\)Given the standard enthalpy changes for the following two reactions:(1) \(\mathrm{N}_{2}(\mathrm{~g})+2 \mathrm{O}_{2}(\mathrm{~g}) \longrightarrow 2 \mathrm{NO}_{2}(\mathrm{~g}) \quad \Delta \mathrm{H}^{\circ}=66.4 \mathrm{~kJ}\)(2) \(2 \mathbf{N}_{2} \mathrm{O}(\mathrm{g}) \longrightarrow \mathbf{2 N}_{2}(\mathbf{g})+\mathbf{O}_{2}(\mathrm{~g}) \quad \Delta \mathrm{H}^{\circ}=-\mathbf{1 6...
8.) From the values of delta H and delta S, calculate delta G then predict whether the following reactions would be spontaneous or not at 25 C. a) Reaction A: delta H= 10.5 kJ/mol, and delta S = 30 J/K mol b) Reaction B: delta H=1.8 kJ/mol, and delta S = -113 J/K mol 9.) Calculate the delta G and K, for the following equilibrium reaction at 25 C: 2H2O(Ⓡ) <-> 2H2(g) + O2(8) delta Gran H2O(x) = -228.6 kJ/mol
8. Calculate AH°, AE°, and w for the following reaction using the data in Table 2 in Study Sheet No. 34 ( in kJ): нн H-C-C-H нн H н H2(g) нH Н(8) (g) 220 304 248 256 +9.67 -296.9 -395.2 +98.3 -300.4 -370.4 16 TABLE 2 Average Bond Energy (kJ/mol) С -Н C-O C-O C-C N=N O=O 413 C=C HOS 615 C N С-F С-СI Н-О 891 C C С-N 351 812 439 292 615- 436 329 803 356 C-N...
(0.8 point) Feedback Part 1 FeO(s) +H2(g) Fe(s) H2(I) kJ Part 2 (0.8 poin Feedback Feo(s)+ H2)Fes)+H2O(1) Eo cell-0.093 08 Question (3 points) e See page 891 Starting with the standard free energies of formation from the following table, calculate the values of Δ๙ and E reactions of the following G°f (kJ/mol) 255.2 Substance FeO(s) H2(g) Fe(s) H200) Pb(s) O2(g) 237.2 744.5 Pb504(s) 813.0 Feedback Part 3 (0.8 point) 2Pb(s)+02(8+2H2SO4(a) 2PbSO4(s)+2H20(0) AG385.3 kJ Part 4 (0.8 poin)Feedback 2Pb(s) +O2 (g)...
AH-116.4 kJ/mol 4. Consider the following reaction: NH.NO, (s) N20 (8) + 2 H20 (g) Calculate AGⓇ for the reaction. Substance S” (J/mol K) NH.NO, (3) 151 N:0 (8) 220 H:0 (9) 183 5. The first step in the commercial production of titanium metal is the reaction of Tio: with chlorine an graphite: TiO2 (s) + 2 Cl: (g) + 2C (5) Tici: (1) + 2 CO(g) Calculate AGº for the reaction. Substance AG? (kJ/mol Substance AG® (kJ/mol) C(s) TiCl...
8. For the following reaction, CC2(s) + 2H2O(l) + Ca(OH)2(s) + C2H2(g) which is spontaneous at all temperatures, one would predict that a. AG is positive for all temperatures. d. AH is - and AS is for the reaction. b. AH is + and AS is for the reaction. e. AH is + and AS' is- for the reaction. c. AH is - and AS is for the reaction. 9. Calculate the standard absolute entropy, in J/mol K. of Mg:...