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4. (14 pts) Calculate AHr (kJ/mole) for the reaction CaHlg)+ 6 F2(g) >2 CFg) + 4...
3.(15pts) In each case, find the missing AH. (kJ/mole) (a) If 2 Al(s) + Fe2O3(s) ---->...
3.(15pts) In each case, find the missing AH. (kJ/mole) (a) If 2 Al(s) + Fe2O3(s) ----> Al2O3(s) + 2 Fe(s) AH,xº = -851.5kJ/mol then 1/8 Al2O3(s) + 1/4 Fe(s) --> 1/4 Al(s) + 1/8 Fe2O3(s) AHX = ? (b) If CaO(8) + 3 C(s) --> CaC2(s) + CO(g) AH,” = 464,8 kJ/mol then 6 CaO(s) + 18 C(s) ---> 6 CaCz(s) +6 CO(g) AHX = ? (c) If N2(g) + 2 O2(g) ---> N204(g) and 2 NO2(g) ----> N2(g) +...
6.65 From the enthalpies of reaction H2(8) + F2(8) 2 HF(8) AH = -537 kJ C(s)...
6.65 From the enthalpies of reaction H2(8) + F2(8) 2 HF(8) AH = -537 kJ C(s) + 2 F2(8) CF4(8) AH = -680 kJ 2 C(s) + 2 H2(8) —— C2H4(8) AH = +52.3 kJ calculate AH for the reaction of ethylene with F2: C2H4(8) + 6 F2(8) — 2 CF4(8) + 4 HF(8)
What is the enthalpy of reaction, dH(rxn), for the following reaction? C2H4 (g). +. 6 F2...
What is the enthalpy of reaction, dH(rxn), for the following reaction? C2H4 (g). +. 6 F2 (g). --->. 2 CF4 (g). +.4 HF (g) dH(f) +52.3 -680 -268.5. kJ/mole dH(rxn) - +2486 kJ dH(rxn) = -2486 kJ o dH(rxn) = -2434 kJ • dH(rxn) = -1000.8 kJ
2. Calculate AH for the reaction of ethylene with F2. CHA(g) + 6 F2(g) → 2...
2. Calculate AH for the reaction of ethylene with F2. CHA(g) + 6 F2(g) → 2 CF.(g) + 4 HF(g) using the following enthalpies of reaction: 2 H2(g) + 2 F2(g) → 4 HF(g) AH, = -1074 kJ C(s) + 2 F2(g) → CF4(g) AH2 = -680 kJ C(s) + H2(g) → CH.(g) AH, = 26.2 kJ
 ...
Calculate ΔHrxno (kJ/mole) for the reaction C2H4(g) + 6 F2(g) ----- > 2 CF4(g) + 4 HF(g) ΔHrxno (kJ/mole) = ? Using only the following data ∆Hºrxn(kJ/mole) H2(g) + F2(g) ------ > 2 HF(g) -537.0 C(s) + 2 F2(g) ----- > CF4(g) - 680.0 2 C(s) + 2 H2(g) ----- > C2H4(g) + 52.3
Question 8 of 20 Using the equations H2(g) + F2 (g) → 2 HF (g) AH°...
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
Calculate the standard enthalpy of formation of gaseous carbon tetrafluoride (CF4) using the following thermochemical information:...
Calculate the standard enthalpy of formation of gaseous carbon
tetrafluoride (CF4) using the following thermochemical
information:
Calculate the standard enthalpy of formation of gaseous carbon tetrafluoride (CF4) using the following thermochemical information: H2(g)F2(g) 2 HF(g) 2 CF4(g)4 HF(g) C2H4(g) +6 F2(g) C2H4(g)2 C(s) 2 H2(g) AH -537 kJ AH 2486.3 kJ AH -52.3 kJ ΔΗ - kJ
Practice with Hess's Law and Standard Heats of Formation 1. (Example) The reaction C2H4 (g) +...
Practice with Hess's Law and Standard Heats of Formation 1. (Example) The reaction C2H4 (g) + 6 F2 (g) → 2 CF4(g) + 4 HF (g) can be written as the sum of: C2H4 (9) ► 2 C(s) + 2 H2 (g) AH = -52.3 kJ/mol 2 C(s) + 4 F2 (9) ► 2 CF4(9) AH = -1360 kJ/mol 2 H2(g) + 2 F2 (g) → 4 HF (a) AH = -1074 kJ/mol C2H4(g) + 6 F2(g) → 2 CF4(g)...
Calculate the standard enthalpy of formation of gaseous carbon tetrafluoride (CF4) using the following thermochemical information:...
Calculate the standard enthalpy of formation of gaseous carbon
tetrafluoride (CF4) using the following thermochemical
information:
2 HF(g) H2(g) + F2(g)
H = +537 kJ
2 CF4(g) + 4 HF(g)
C2H4(g) + 6
F2(g)
H = +2486.3 kJ
C2H4(g)
2 C(s) + 2 H2(g)
H = -52.3 kJ
Calculate the standard enthalpy of formation of gaseous carbon
tetrafluoride (CF4) using the following thermochemical
information:
2 HF(g) H2(g) + F2(g)
H = +537 kJ
2 CF4(g) + 4 HF(g)
C2H4(g) +...
Calculate the standard enthalpy of formation of gaseous hydrogen fluoride (HF) using the following thermochemical information:...
Calculate the standard enthalpy of formation of gaseous
hydrogen fluoride (HF) using the following thermochemical
information:
C2H4(g) + 6 F2(g) 2 CF4(g) + 4 HF(g) H = -2486.3 kJ
CF4(g) C(s) + 2 F2(g) H = +680 kJ
C2H4(g) 2 C(s) + 2 H2(g) H = -52.3 kJ
H = ??? kJ
3.(15pts) In each case, find the missing AH. (kJ/mole) (a) If 2 Al(s) + Fe2O3(s) ----> Al2O3(s) + 2 Fe(s) AH,xº = -851.5kJ/mol then 1/8 Al2O3(s) + 1/4 Fe(s) --> 1/4 Al(s) + 1/8 Fe2O3(s) AHX = ? (b) If CaO(8) + 3 C(s) --> CaC2(s) + CO(g) AH,” = 464,8 kJ/mol then 6 CaO(s) + 18 C(s) ---> 6 CaCz(s) +6 CO(g) AHX = ? (c) If N2(g) + 2 O2(g) ---> N204(g) and 2 NO2(g) ----> N2(g) +...
6.65 From the enthalpies of reaction H2(8) + F2(8) 2 HF(8) AH = -537 kJ C(s) + 2 F2(8) CF4(8) AH = -680 kJ 2 C(s) + 2 H2(8) —— C2H4(8) AH = +52.3 kJ calculate AH for the reaction of ethylene with F2: C2H4(8) + 6 F2(8) — 2 CF4(8) + 4 HF(8)
What is the enthalpy of reaction, dH(rxn), for the following reaction? C2H4 (g). +. 6 F2 (g). --->. 2 CF4 (g). +.4 HF (g) dH(f) +52.3 -680 -268.5. kJ/mole dH(rxn) - +2486 kJ dH(rxn) = -2486 kJ o dH(rxn) = -2434 kJ • dH(rxn) = -1000.8 kJ
2. Calculate AH for the reaction of ethylene with F2. CHA(g) + 6 F2(g) → 2 CF.(g) + 4 HF(g) using the following enthalpies of reaction: 2 H2(g) + 2 F2(g) → 4 HF(g) AH, = -1074 kJ C(s) + 2 F2(g) → CF4(g) AH2 = -680 kJ C(s) + H2(g) → CH.(g) AH, = 26.2 kJ
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
Calculate the standard enthalpy of formation of gaseous carbon
tetrafluoride (CF4) using the following thermochemical
information:
Calculate the standard enthalpy of formation of gaseous carbon tetrafluoride (CF4) using the following thermochemical information: H2(g)F2(g) 2 HF(g) 2 CF4(g)4 HF(g) C2H4(g) +6 F2(g) C2H4(g)2 C(s) 2 H2(g) AH -537 kJ AH 2486.3 kJ AH -52.3 kJ ΔΗ - kJ
Practice with Hess's Law and Standard Heats of Formation 1. (Example) The reaction C2H4 (g) + 6 F2 (g) → 2 CF4(g) + 4 HF (g) can be written as the sum of: C2H4 (9) ► 2 C(s) + 2 H2 (g) AH = -52.3 kJ/mol 2 C(s) + 4 F2 (9) ► 2 CF4(9) AH = -1360 kJ/mol 2 H2(g) + 2 F2 (g) → 4 HF (a) AH = -1074 kJ/mol C2H4(g) + 6 F2(g) → 2 CF4(g)...
Calculate the standard enthalpy of formation of gaseous carbon
tetrafluoride (CF4) using the following thermochemical
information:
2 HF(g) H2(g) + F2(g)
H = +537 kJ
2 CF4(g) + 4 HF(g)
C2H4(g) + 6
F2(g)
H = +2486.3 kJ
C2H4(g)
2 C(s) + 2 H2(g)
H = -52.3 kJ
Calculate the standard enthalpy of formation of gaseous carbon
tetrafluoride (CF4) using the following thermochemical
information:
2 HF(g) H2(g) + F2(g)
H = +537 kJ
2 CF4(g) + 4 HF(g)
C2H4(g) +...
Calculate the standard enthalpy of formation of gaseous
hydrogen fluoride (HF) using the following thermochemical
information:
C2H4(g) + 6 F2(g) 2 CF4(g) + 4 HF(g) H = -2486.3 kJ
CF4(g) C(s) + 2 F2(g) H = +680 kJ
C2H4(g) 2 C(s) + 2 H2(g) H = -52.3 kJ
H = ??? kJ
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