45. The following thermochemical equations can be written for the oxides of iron: Fe (s)+2 O2 (g)-...
43. The following thermochemical equations can be written for the oxides of Fe (s) + 12 02 (g) - FeO (s) 3Fe (s) +202 (g) - Fe3O4(s) AH°= -272.0 kJ AH° = -1118.4 kJ Find AH° for 4FeO (s) Fe(s) + Fe3O4(s) or boob HOOD Hool ooo.ONT Beon som Hoon lomas 46. Find the heat of reaction for CH4 (g) + 4F2 (g) CF4 (g) + 4HF (9) AHºf (CH4) = -74.81 kJ/mol O 2 9 AH(CF4) = -925 kJ/mol...
Using standard heats of formation calculate AH for 4 FeO (s) + O2 (g) 2 Fe Os (s) AHr of FeO (s) - -272.0 kJ/mol 5 AH'T of Fe2O3 (s) = -825.5 kJ/mol
Given the standard enthalpy changes for the following two reactions: AHo 544.0 kJ (1) 2Fe(s)O2(g)2FeO(s) AHo 181.6 kJ (2) 2Hg()O2(g) +2HgO(s) what is the standard enthalpy change for the reaction: (3) FeO(s)Hg()>Fe(s) + HgO(s) AH° ? kJ Submit Answer 1 question attempt remaining
1.(3pts) Use the following data to determine the AHıxn of 2 C3H12O(l) + 15 O2(g) ----> 10 CO2(g) + 12 H2O(1) Substance AH(kJ/mol) Substance AH(kJ/mol) Data: CzH.(g) CH,OH(1) C.H.0(1) C6H40(1) H2O(g) CO(g) O2(g) 20.9 -239.0 -277.0 -316.0 -241.82 -110.53 C3H2(g) CHOH(9) CH 20(1) CH;60(1) H2O(1) -104.0 -201.0 -298.6 -340.0 -285.83 -393.51 CO2 N (8) 2.(2pts) If you are given 148,0 g O2(g) and a sufficient amount of the other reactant, calculate the heat associated with reaction in problem 1 and...
The following thermochemical equation is for the reaction of iron(III) oxide(s) with hydrogen(g) to form iron(s) and water(g). Fe2O3(s) + 3H2(g)— 2Fe(s) + 3H2O(g) AH = 98.8 kJ When 62.3 grams of iron(III) oxide(s) react with excess hydrogen(g), kJ of energy are Hint: An amount of energy is expressed as a positive number. The sign of AH in the thermochemical equation indicates whether the energy is absorbed or evolved. An automobile engine provides 523 Joules of work to push the...
You are given the following thermodynamic data. 2 Fe(s) + 3/2 O2(g) → Fe2O3(s) ΔH° = -823 kJ 3 Fe(s) + 2 O2(g) → Fe3O4(s) ΔH° = -1120. kJ Calculate the ΔH° for the following reaction. 3 Fe2O3(s) → 2 Fe3O4(s) + ½ O2(g)
The following thermochemical equation is for the reaction of iron(III) oxide(s) with hydrogen(g) to form Fe304(s) and water(g) 00'9-HV (o'H+()oz(a)H+() How many grams of Fe,Os(s) would have to react to produce 0.778 kJ of energy?
1.(3pts) Use the following data to determine the AH... of 2 CH2O(1) + 15 O_() ---> 10 CO(g) + 12 H.O(1) Data: Substance AH(kJ/mol) Substance AH(kJ/mol) CHg) CH,OH(L) C.H.O(1) CH401) H2O(g) CO(g) O2(g) 20.9 -239.0 -277.0 -316,0 -241.82 -110.53 CH.(8) CH,OH(S) CsH 20 (1) CHO(1) HO() -104.0 -201.0 -298.6 -340.0 -285.83 -393.51 CO2 NB) 2.(2pts) If you are given 148.0 g O(g) and a sufficient amount of the other reactant, calculate the heat associated with reaction in problem 1 and...
Calculate AH for the following reaction, CaO(s) + CO2(g) CaCO3(s) given the thermochemical equations below. 2 Ca(s) + O2(g) + 2 Cao(s) AH = -1270.2 kJ C(s) + O2(g) CO2(g) AH = -393.5 kJ 2 Ca(s) + 2 C(s) + 3 O2(g) → 2 CaCO3(s) AH = -2413.8 kJ 0-750.1 kJ O +350.2 kJ 0 -178.3 kJ O +2870.6 kJ
4 Fe(s) + 3 O2(g) → 2 Fe2O3(s) AH = -1652 kJ (a) How much heat is released when 3.54 mol iron are reacted with excess O2? Ok] (b) How much heat is released when 1.48 mol Fe2O3 is produced? CJ) (c) How much heat is released when 2.50 g iron are reacted with excess O2? DJ (d) How much heat is released when 12.6 g Fe and 1.02 g O2 are reacted? CkJ