The value of AHT for the following reaction is 169.5 kJ. The value of AH for CaO(s) skmd.CaCO3 (s)- Cao (s) * CO2 )Standard Enthalpies of Formation of Some InorganicSubstances at 25'CTABLE 6.4SubatanceA mol)SubstanceA /mo)-1876Ag(s)AgC)AKS)127.0ALO)"1669.8Mg(s)MgO)Br()HBrgCigraphite)Cidiamond)-36.2-S01.S-111291.90NH4NO)-110.546390433.35Cas)35.6NO)CCO(s)966Og)HCKgCar)92.3SirhombicScenonocinic)so-cosoFig)-716Hg)Hg)20.152418

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The value of AH for the following reaction is 169.5 kJ. The value of AH for CaO(s) s k/mol. CaCO3 (s)- Ca0 s) + CO2 (g) Standard Enthalpies of Formation of Some Imorganic Substances at 25'C TABLE 6.4 Subetance A mol) Substance AN mol) Ag) HO -1876 AC) 127.0 AKS) -1669.8 25.9 ALO) Br() HB Cigraphite) Cidiamond) Mg) MgO0 MgC0,0) -36.2 -601. 1129 1.90 COg) -1105 46.3 NOK) NO ) NO) NOg Og) 33.35 81.56 9,6 Cas) 635.6 CCO(3) (SYD HCKg Car) Sirhoesbic) Scmonoclinic Fig) He ZRIZ sroc 2418 HOD

The value of AH for the following reaction is 169.5 kJ. The value of AH for CaO(s) s k/mol. CaCO3 (s)- Ca0 s) + CO2 (g) Standard Enthalpies of Formation of Some Imorganic Substances at 25'C TABLE 6.4 Subetance A mol) Substance AN mol) Ag) HO -1876 AC) 127.0 AKS) -1669.8 25.9 ALO) Br() HB Cigraphite) Cidiamond) Mg) MgO0 MgC0,0) -36.2 -601. 1129 1.90 COg) -1105 46.3 NOK) NO ) NO) NOg Og) 33.35 81.56 9,6 Cas) 635.6 CCO(3) (SYD HCKg Car) Sirhoesbic) Scmonoclinic Fig) He ZRIZ sroc 2418 HOD

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Green plants utilize sunlight to convert CO2 and H2O to glucose (C6H1206) and 02. Use the information in the table below to calculate AHo Substance A H;°(kJ/mol) S° (J/mol*K) CO2(g) -393.5 213.2 H20(1) -285.8 69.9 C6H1206(s) -1273.3 212.1 O2(g) 205.0 134 kJ 2802.5 kJ Cannot be determined – more information is needed. -594 kJ -256.5 kJ
Below is the reaction for the evaporation of water. H2O (I) H20 (g) AH°f H2O (1)= -285.8 kJ/mole ; H20 (g) = -241.8 kJ/mole %3D Calculate AH*rxn for this process. This is the reaction that happens when your sweat evaporates. Why is this a cooling mechanism for your body? How much sweat would have to evaporate from a person's skin to cool the body by 0.5 C? Assume this person has a body mass of 150 Ibs and the specific heat capacity of the body is 4.0 J/g °C. 1 Ib. = 0.454 kg
7) Calculate the change in internal energy (AE) for a system that is giving off 25.0 kJ of heat and is changing from 12.00 L to 6.00 L in volume at 1.50 atm pressure. (Remember that 101.3 J = 1 L'atm) A) +25.9 kJ B) -16.0 kJ C) -25.9 kJ D) -24.1 kJ E) 937 kJ Answer: D Diff: 2 Page Ref: 6.4
Consider this reaction: C6H12O6 + 602 à 6CO2 + 6H₂O. What is the standard enthalpy AH°rxn given the standard molar enthalpies of the substances below? Substance C6H12O6 02 CO₂ H₂O AHᵒf (kJ/mol) -1274.4 0 -393.45 -241.8
Given the standard enthalpies of formation for the following substances, determine the reaction enthalpy for the following reaction. 2N2H4(g) + 2NO2(g) 3N2(g) + 4H20(g) AHrxn = ? kJ Substance AH°, kJ/mol N2H4(g) +95.4 NO2(g) H20(g) +33.1 -241.8 Select one: a. +1,224.2 kJ b. -967.2 kJ/mol C. +967.2 kJ/mol d. +257.0 kJ/mol e. -1,224.2 kJ
5. Use standard heats of formation and the following equation to determine the enthalpy of formation of C₂H() ΔΗ, = -3127 kJ 2C₂H6(g) +70₂(g) ⇒ 4CO2(g) + 6H₂O)
1. The value of ΔH0 for the reaction CH3OH(l) → CO(g) + 2H2(g) is +128.1 kJ. Determine the heat consumed when 5.75 g of CO(g) is formed.
Calculate AH°rxn_in kJ/mol for the reaction below. Look up the values for AHF° below. 4 NH3 (g) + 5 02 (g) → 4 NO (g) + 6 H20 (g) Table 6.3 Standard Enthalpies of Formation of Some Inorganic Substances at 25°C Substance AH; (kJ/mol) Substance AH? (kJ/mol) Ag(s) AgCl(s) Al(s) H,O;(/) - 187.6 Hg(/) 2(s) HI(g) Mg(s) MgO(s) M9CO (s) N2(g) NH3(G) NO(g) - 127.04 Al;03(s) - 1669.8 25.94 Br2(1) HBr(g) -36.2 -601.8 C(graphite) C(diamond) -1112.9 1.90 Co(g) -110.5 -46.3 CO2(g) Ca(s) - 393.5 90.4 NO,(g) N204(g) N20(g) O(g) 0,(g) 33.85 CaO(s) -635.6 9.66 CaCO;(s) Cl2G) - 1206.9 81.56 249.4 -92.3 HCIG) Cu(s) 03(g) S(rhombic) 142.2 CuO(s) - 155.2 F2(g) HF(g) H(g) S(monoclinic) 0.30 SO-(g) So:(g) H,S(g) -268.61 -296.1 218.2 - 395.2 H2(g) H2O(g) -20.15 -241.8 Zno(s) -347.98 H2O(I) -285.8
18. Calculate the heat of reaction at constant volume for 5.00 g C3H8 ,considering the following chemical reaction: C3H8 (g) + O2(g) --------------------> CO2 (g) + H2O (g) heat of standard formation: O2 = 0.00 kJ / mole, H2O (g) = -245 kJ / mole, CO2 = -318 kJ/mole and C3H8 = -438 kJ / mole C3H8 = 44.09 g/mole Temperature is 33 oC a. -789 kJ b. -212 kJ c. 412 kJ d. -169 kJ
Calculate AH°rxn in kJ/mol for the reaction below. Look up the values for AHº below. SO2 (g) + ½ O2 (g) – SO3 (g) Table 6.3 Standard Enthalpies of Formation of Some Inorganic Substances at 25°C Substance AH; (kJ/mol) Substance AH; (kJ/mol) Ag(s) AgCl(s) H,O2(/) - 187.6 - 127.04 Hg(/) 1(5) Al(s) Al203(s) - 1669.8 HI(g) 25.94 Br2(/) HBr(g) C(graphite) Mg(s) - 36.2 MgO(s) MgCO3(s) N2(g) NH3(g) NO(g) NO,(g) N,O4(g) -601.8 -1112.9 C(diamond) 1.90 CO(g) CO2(g) -110.5 -46.3 -393.5 90.4 Ca(s) 33.85 CaO(s) -635.6 9.66 CacO;(s) - 1206.9 N20(g) 81.56 Cl2(g) HCI(g) Cu(s) CuO(s) O(g) O2(g) O3(g) 249.4 -92.3 142.2 - 155.2 S(rhombic) F2(g) HF(g) S(monoclinic) 0.30 -268.61 SO2(g) SO;(g) H2S(g) -296.1 H(g) H2(g) 218.2 -395.2 -20.15 -347.98 H,O(g) H2O(I) -241.8 ZnO(s) -285.8
Use the data to determine the heat of reaction AHrxn for this process CO₂ (aq) + Cao(s) a b C Substance Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. d CO,(aq) CaCO3(s) CaO(s) -178.3 kJ/mol 178.3 kJ/mol 2234 kJ/mol -2234 kJ/mol DHºf Sºf (kJ/mol) (J/mol*K) -393.5 213.8 92.9 38.2 -1206.9 -635.1 CaCO3 (s).
5 18 21 F2 @ 2 S Alt 4 W X F3 Using the standard enthalpies of formation He given and your knowledge of H values for elements in their standard states, determine the enthalpy of this reaction. 2A3X2 (g) + O2 (g) - 2A3X (g) + 2XO (g) Hvalues A3X2 (g) = -78 kJ/mol A3X (g) = -221 kJ/mol XO (g) = 111 kJ/mol O Et F4 40) # 3 E D C $ 4 R F F5 ► 11 V olo % 5 F6 T G A B A 6 S F7 Y H F8 & 7 N U J F9 * 00 8 M Q I K F10 S ( 9 < Alt O F11 L 8: ) O O F12 P Ctrl PrtScr 0.00 ? { [ + = 1 +Home Act Go to 83°F Su Insert } 1 TP