Use the information provided to determine AH°rxn for the following reaction: CH4(g) + 4 Cl2(g) → CCl4(g) + 4 HCl(g) AH°rxn = ? AHof (kJ/mol) CH4(g) -75 CCl4(g) -96 HCl(g) -92 O A.-71 kJ O B.-389 kJ OC. +79 kJ O D. +113 kJ O E.-113 kJ

For the reactionCO(g) + Cl2(g)  COCl2(g)G° = -62.9 kJ and S° = -137.3 J/K at 331 K and 1 atm.This reaction is (reactant, product) fill in the blank 1 favored under standard conditions at 331 K.The standard enthalpy change for the reaction of 2.37 moles of CO(g) at this temperature would be                     kJ.

4. Two solutions, initially at 24.60°C, are mixed in a coffee cup calorimeter (Ccal = 15.5 J/°C). When a 100.0 mL volume of 0.100 M AgNO3 solution is mixed with a 100.0 mL sample of 0.200 M NaCl solution, the temperature in the calorimeter rises to 25.30°C. Determine the AH°rxn for the reaction. Dsol'n = 1.00 g/mL. Csol'n = 4.184 J/g°C.

ΔH° f (kJ/mol) SO 2Cl 2( g) + 2 H 2O( l) → 2 HCl( g) + H 2SO4( l) ΔH° rxn = ? SO 2Cl 2( g) -364H 2O( l) -286HCl( g) -192H 2SO 4( l) +314

Choose the correct ΔH0reaction for the reaction: 4 NH3(g) + 5 O2(g) → 4 NO(g) +  6 H2O(g) Compound ΔH0f (kJ/mol reaction) NH3(g) -46.0 NO(g) +90.0 H2O(g) -242 A) -908 kJ/mol reactions  B) -106 kJ/mol reactions C) +106 kJ/mol reactions D) -152 kJ/mol reactions E) +908 kJ/mol reactions F) +152 kJ/mol reactions

Charcoal is primarily carbon. Determine the mass of CO2 produced by burning enough carbon (in the form of charcoal) to produce 5.00 * 102 kJ of heat.C(s) + O2(g) ------->CO2(g) ∆H° rxn = -393.5 k

Among the equations below, indicate all those that are exothermic: i. HNO3(aq) + KOH(aq) → KNO3(aq) + H2O(l)                    ∆H = -53 kJ ii. Fe3O4(s) + CO(g) + 38 kJ → 3FeO(s) + CO2(g) iii. CaO(s) + H2O(l) → Ca(OH)2(aq) + 65,2 kJ iv. H2O2(l) → H2(g) + O2(g)                                                 ∆H = 188 kJ v. NaOH(s) + HCl(l) → NaCl(s) + H2O(l)                              ∆H = -178 kJ

A calorimeter contains 16.0 mLmL of water at 12.5 ∘C∘C . When 1.40 gg of XX (a substance with a molar mass of 75.0 g/molg/mol ) is added, it dissolves via the reaction X(s)+H2O(l)→X(aq)X(s)+H2O(l)→X(aq) and the temperature of the solution increases to 25.0 ∘C∘C . Calculate the enthalpy change, ΔHΔ�, for this reaction per mole of XX. Assume that the specific heat of the resulting solution is equal to that of water [4.18 J/(g⋅∘C)J/(g⋅∘C)],  that density of water is 1.00 g/mLg/mL, and that no heat is lost to the calorimeter itself, nor to the surroundings. Express the change in enthalpy in kilojoules per mole to three significant figures.