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4) Given the thermochemical equations: (3 points) Br2(l) + F2(g) → 2BrF(g) Br2(1) + 3F2(g) →...
3) The first step in the industrial recovery of zinc from the zinc sulfide ore is roasting that is conversion of ZnS to ZnO by heating: 2ZNS(s)+ 302[g)2ZnO(s) + 2S02(g) AH--879 KJ/mol Calculate the heat evolved (in KJ) per gram of ZnS roasted. (3 points) 4) Given the thermochemical equations: (3 points) AHO-188 KJ/mol AH-768 KJ/mol Br2)+ F2g) 2BrF(g) Br2)+3F2(g) 2BrF3(g) Calculate the AHm for the reaction BrF(g)+ F2(g) BrF3(g)
The following thermochemical equation is for the reaction of bromine trifluoride(g) to form bromine(g) and fluorine(g). 2BrF3(9)— Br2(g) + 3F2(9) AH = 542 kJ How many grams of BrF3(g) would be made to react if 75.6 kJ of energy were provided? grams
The following thermochemical equation is for the reaction of bromine trifluoride(g) to form Br2(g) and fluorine(g) 2BTF3(g) AH = 542 kJ Br2(g) + 3F2(g) How many grams of BrF3(g) would react if 76.7 kJ of energy were provided? grams Submit Answer 1 question attempt remaining
Help ! 1-3 Questions 1. Consider the reaction: 2BrF3(g)------------>Br2(g) + 3F2(g) Using standard thermodynamic data at 298K, calculate the free energy change when 2.06 moles of BrF3(g) react at standard conditions. G°rxn = _____kJ 2. Consider the reaction Fe2O3(s) + 2Al(s)--------->Al2O3(s) + 2Fe(s) Using standard thermodynamic data at 298K, calculate the entropy change for the surroundings when 1.52 moles of Fe2O3(s) react at standard conditions. S°surroundings = _______J/K 3. For the reaction 2C2H6(g) + 7O2(g)------------>4CO2(g) + 6H2O(g) H° = -2.86×103...
Hint: No calculations are required. For the reaction 2BrF3(g)— Br2(g) + 3F2(g) AH° = 542 kJ and AS° = 269 J/K At standard conditions, this reaction would be product favored O at relatively low temperatures. O at no temperature. O at all temperatures. O at relatively high temperatures.
AH = -390 kJ AH = -745 kJ 13. Given the following thermochemical equations: IF (g) + F2 (g) F3 (9) IF (9) + 2 F2 (9) IFs (9) Find the value of AH for the equation below: (6 points) IFs (9) - IF3 (9) + F2 (9) 14. Baking soda (NaHCO3) can be decomposed when heated, as shown: 2 NaHCO3 (s) Na CO2 (s) + CO2(g) + H20 (g) Use heats of formation to determine the value of AH...
For the reaction 2 BrF3(g) - Br2(g) + 3 F2(g) AG° = 470.3 kJ and AH° = 542.1 kJ at 267 K and 1 atm. This reaction is (reactant, product) favored under standard conditions at 267 K. The entropy change for the reaction of 2.38 moles of BrF3(g) at this temperature would be J/K.
5 Determine the standard enthalpy of formation of Fe2O3(s) given the thermochemical equations below. 2Fe(s) + 3/2 O2(g) → Fe2O3(s) AH(Fe2O3) = ? Fe(s) + 3 H2O() Fe(OH)3(s) + 3/2 H2(g) AH° = +160.9 kJ/mol-rxn H2(g) + 1/2O2(g) → H2O(1) A.H° = -285.8 kJ/mol-rxn Fe2O3(s) + 3 H2O(1) ► Fe(OH),(s) A,Hº +288.6 kJ/mol-rxn
Use the References to access important values if needed for this question. The following thermochemical equation is for the reaction of bromine trifluoride(g) to form Br2(g) and fluorine(g) 23rF3(8) Bra(g) + 3F2(e) AH = 542 kJ How many grams of BrF3(g) would react if 97.0 kJ of energy were provided? Submit Answer 1 question attempt remaining
Question 8 of 20 Using the equations H2(g) + F2 (g) → 2 HF (g) AH° = -79.2 kJ/mol C(s) + 2 F2 (g) → CF. (g) AH° = 141.3 kJ/mol 2 C(s) + 2 H2 (9) C2H4 (9) AH = -97.6 kJ/mol Determine the enthalpy for the reaction C2H4 (g) + 6 F2 (g) → 2 CF4 (9) + 4 HF (g). kJ/mol