Use the following information to determine the enthalpy for the reaction shown below CS2(1) + 302(g) → CO2(g) + 2SO;(g) AH =? C(graphite) +O2(g) → CO2(g) AH° = -393.5 kJ %3D S(s) + O2(g) → SO2(g) AH = -296.8 kJ %3D C(graphite) + 2S(s) → CS2(1) AH = 87.9 kJ %3D 10. Use the following information to determine the enthalpy for the reaction shown below. CH4(g) + H2O(g) → CO(g) + 3H2(g) AH = ? AH° = 15.3 kJ AH° = 131.3 kJ AH° =-41.2 kJ 2C(s) + 2H2O(g) → CH4(g) + CO2(g) %3D C(s) + H2O(g) –→ CO(g) + H2(g) %3D CO(g) + H2O(g) → CO2(g) + H½(g) %3D

Which of the following reactions is exothermic? ¹/2 N₂(g) + ¹/2O2(g) + 90.7 kJ ® NO(g) CO(g) + 111 kJ® C(s) + ¹/2 O₂(g) H₂(g) + ¹/2O₂(g) ® H₂O(g) AH = -243 kJ/mol ○ H₂O(g) ®H₂(g) + ¹/ 0₂(g) - AH = -243 kJ/mol ¹/2 H₂(g) + ¹/2 12(g) Ⓡ HI(g) AH = +26 kJ/mol

Find the enthalpy of reaction A,H° for the following reaction : 2 S(s) + 3 02(g) → 2 SO3(g) 1. S(s) + O2(g) → SO2(g) A;H°;(SO2,g) = -297KJ/mol 2. 2 SO3(g) → 2 SO2(g) + O2(g) AH°2 = 198kJ/mol %D a. -792 kJ/mol b. +792 kJ/mol c. +396 kJ/mol d. -396 kJ/mol

A chemist measures the enthalpy change AH during the following reaction: 2 Al(OH)3(s)→Al,03(s) + 3 H,0(1) AH=41. kJ Use this information to complete the table below. Round each of your answers to the nearest kJ/mol. reaction ΔΗ x10 2 Al,0, (s) + H,0(1) Al(OH), (s) kJ 3 3 Al, O, (s) + 3H,0(1) → 2A1(OH), (s) kJ 3 Al(OH), (s) → Al, 0, (s) + H,0() |kJ 3

Calculate Δ­H for the reaction  NO(g) + O(g) → NO2(g) given the following information: NO(g) + O3(g) → NO2(g) + O2(g)                     Δ­H = -198.9 kJ O3(g) → 3/2O2                                                   Δ­H = -142.3 kJ                          O2(g) → 2 O(g)                                                   Δ­H = 495.0 kJ

The standard enthalpy change for the following reaction is 103 kJ at 298 K. N2(g) + O2(g) + Cl2(g) ---------> 2 NOCl(g)        ΔH° = 103  kJ What is the standard enthalpy change for this reaction at 298 K? 1/2 N2(g) + 1/2 O2(g) + 1/2 Cl2(g)-------->  NOCl(g)  kJ

Using the equations 2 Fe (s) + 3 CI, (g) → 2 FeCl, (s) AH° = -800.0 kJ/mol Si(s) + 2 CI, (g) → SICI, (s) AH° = -640.1 kJ/mol %3D 4 Determine the enthalpy (in kJ/mol) for the reaction 3 SICI, (s) + 4 Fe (s) → 4 FeCl, (s) + 3 Si (s) kJ/mol

Use the following information to determine the enthalpy for the reaction shown below. CHĄ(g) + H20(g) → CO(g) + 3H2(g) AH° = ? 2C(s) + 2H20(g) → CHĄ(g) + CO2(g) AH° = 15.3 kJ C(s) + H20(g) → CO(g) + H2(g) CO(g) + H2O(g) –→ CO2(g) + H2(g) AH° = 131.3 kJ AH° = -41.2 kJ -206.1 kJ +206.1 kJ -74.8 kJ +74.8 kJ +149.6 kJ

Given the standard enthalpy changes for the following two reactions: (1) Hg(1) + Cl,(g) →HgCl,(s) AH° = -224.3 kJ (2) Fe(s) + Cl2(g)→FeCl,(s) AH° = -341.8 kJ what is the standard enthalpy change for the reaction: (3) Hg(1) + FeCl,(s)→ →HgCl,(s) + Fe(s) ΔΗ-? kJ Submit Answer Try Another Version 3 item attempts remaining

Using the equations Ca(s) + 1/2 0, (g) → CaO (s) AH° = -450 kJ/mol CO, (g) → C (s) + O, (g) AH° = 394 kJ/mol Determine the enthalpy for the reaction C(s) + 2 CaO(s) → CO, (g) + 2 Ca(s). KJ/mol 1 2 3 6. C 7 8 9. +/- х 100 4.