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Determine the Shexa for SO3(g) + Ch.ch Calg) + Sess all at 1 atin) Given DHI...
Determine the heat of evaporation of carbon disulfide, CS 2() - CS 2(g) given the enthalpies of reaction below. C(s) + 2 S(s)-CS() C(s) + 2 S(s) - CS2(g) ArHº = +89.4 kJ/mol-rxn ArHº = -116.7 kJ/mol-rxn Which of the following has zero standard enthalpy of formation at 25 °C? a. Br2(g) Ob. Br(s) O c. Br(g) O d. Br2(5) Oe. Br2(1)
1. Use the information provided to determine AH*rxn for the following reaction: 3 Fe2O3(s) + CO(g) → 2 Fe3O4(s) + CO2(g) AH*rxn = ? kl AH*t (kJ/mol Fe2O3(s) -824 Fe3O4(s) -1118 colg) -111 CO2(9) -394
Question 7 (1 point) Given the thermochemical equation O2(g)---> SO3(g) AH= -99.1 kJ/mol, S2(g) + calculate the enthalpy change when 89.6 g of SO2 is converted to SO3. -111 kJ 69.3 kJ O-69.3 kJ -139 kJ 139 kJ
Is this reaction spontaneous or non spontaneous? Given that ΔfG°(CuSO4(s))=-661.8 kJ mol-1, ΔfG°(CuO(s))=-129.7 kJ mol-1, ΔfG°(SO3(g))=-371.06 kJ mol-1 The reaction CuSO4(s) →CuO(s)+SO3(g) is
7 Coleulate Kt Given the following data: 4. (Equation 1) S(s) +3/202(g) - SO3(g) AG= - 371 kJ slsb to gts2 gniwollot od lo do09 rw onimtsbThan 24 HA To (Equation 2) 2SO2(g)+ O2(g)2 SO3(g) AG°= - 142 kJ SO2(g) Calculate AG° for the goal equation S(s) +O2(g) 008 Is this reaction spontaneous? 00 02T 00 noitons gaivollot slt To doc9 10l 2410
1. How much heat is needed to raise the temperature of 1.50 g of aluminum metal from 23.2 °C to 30.5 °C? (Specific heat capacity of aluminum is 0.90 J/g-K). 2. Given the following thermochemical equation: DH = -1107 kJ How many kJ of heat are released when 15.75 g of Ba(s) reacts completely with oxygen to form BaO(s)? 3. Mothballs are composed primarily of the hydrocarbon naphthalene (C10H8). When 1.25 g naphthalene is burned in a bomb calorimeter, the temperature rises from 25.25...
Given the following balanced equation for the combustion reaction of an unknown fuel: 4 Fuel (1) + 902(9) -> 8C02(g) + 10H 20(1) + AHørxn = -3857 kJ/mol 2N2(g) Given that AH°f{CO2(g)) = -393.5 kJ/mol and AH°f[H2001)) = -285.8 kJ/mol, calculate the enthalpy of formation of this fuel. Write answer to four significant figures. Numeric Response
7. Use the given AH, Sº and AGºr values to calculate the AG at 25°C for the following reaction two different ways. First with the AHºnx and AS°n to get AGºnn and then with AGº's to get AGºra. Compare your results. CS2(g) + 2H2O + 2O2(g) – CH4(g) + 2SO4(g) AH° (kJ/mol) 117 -286 0 -396 Sº (J/mol-K) 238 70. 205 186 257 AGⓇ (kJ/mol) 67 -237 0 -51 -371 -75 For each of the following redox reactions, a) Write...
1. Calculate AH for each reaction using bond dissociation values. Determine if the reaction is exothermic or endothermic a. CH3CH2CH3 + Br2 — CHșCH,CH,-Br + HBr ОН + H₂O + HI 498 297 aaa 720 - 698 - 22 401 andiotamie Table 6.2 Bond Dissociation Energies for Some Common Bonds IA-B - A. + .B] Bond AH kJ/mol (kcal/mol) Bond AH kJ/mol kcal/mol) 456 569 431 H-Z bonds H-F H-CI H-Br H-1 Н-ОН (136) (103) (88) 368 297 498 (71)...
1. Given the following reaction, use Stoichiometry to answer the following questions: 2 H2O2 (I) → 2 H2O (I) + O2 (g) ΔH° = -196.1 kJ a. When O2 is formed is the reaction exothermic or endothermic? How can you tell from the information provided with the balanced equation? b. How many grams of hydrogen peroxide are required to form 4.20 mol O2? c. How much heat is exchanged when 24 kg of hydrogen peroxide decomposes? d. How much oxygen...