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Calculate AH° at 25°C for the reaction below.oceano 2ZnS() + 30,(g) +2ZnO(s) + 250,() -206.0 0...
7. Calculate the enthalpy of change for the following chemical reaction: CS,(0) + 3 O.(g) CO.(g) + 2 SO.(g) Use the following information: C(s) +0(g) - CO.(g); AH, 393.5 kJ/mol S(s) + O2(g)--S0(g); ΔΗ, ,--296.8 kJ/mol C(s) kJ/mol 296.8 kJ/molCS); 2 S(s) 87.9
For the reaction l2(g) → 12(s), AH °= -62.4 kJ at 25°C. Based on these data, at 25°C O AH vap = 62.4 kJ/mol. O AH sub = -62.4 kJ/mol. O AH vap = -62.4 kJ/mol. O AH sub = 62.4 kJ/mol.
Calculate the standard enthalpy change for the following reaction at 25 °C. MgCl, (s)+H,O)MgO(s)+2 HCI(g) AH; values can be found in this table of thermodynamic values. AH= kJ/mol
Calculate the AH for the following reaction: TICI4 (g) + 2 H20 (g) →TiO2 (s) + 4 HCI (8) compound AH+ (kJ/mol) TICIA -763 H20 -242 -945 HCI -92 TIO2 -66 kJ/mol +32 kJ/mol 0 -32 kJ/mol +66 kJ/mol -2.0 x 103 kJ/mol Question 27
Find AH®rxn for the reaction 2Ag2S(s) + 2H2O(0) - 4Ag(s) + 2H2S(g) + O2(g). [AH°F (Ag2S(s)) = -326 kJ/mol; AH+ (H2S(g)) = -20.5 kJ/mol; AHT (H2000) = -285.5 kJ/mol] O 575.2 kJ/mol 0 565.2 kJ/mol O None of the above O 585.2 kJ/mol 0 595.2 kJ/mol
1) Find the AH of the following reaction: C(s) + O2(g) à CO2(g) Given the following data: Sro(s) + CO2(g) à SrCO3(s) 2Sro(s) à 2Sr(s) +0,(8) AH = -234 kJ AH = +1184 kJ 2SCO,(s) à 25r(s) + 2C(s) + 302(g) AH = +2440 kJ 2) Find the AH of the following reaction: 3NO,(g) + H2O(l) à 2HNO,(aq) + NO(g) Given the following data: 2NO(g) + O2(g) à 2NO(g) AH=-116 kJ 2N2(g) + 502(g) + 2H2O(l) à 4HNO3(aq) AH =...
3) The first step in the industrial recovery of zinc from the zinc sulfide ore is roasting that is conversion of ZnS to ZnO by heating: 2ZNS(s)+ 302[g)2ZnO(s) + 2S02(g) AH--879 KJ/mol Calculate the heat evolved (in KJ) per gram of ZnS roasted. (3 points) 4) Given the thermochemical equations: (3 points) AHO-188 KJ/mol AH-768 KJ/mol Br2)+ F2g) 2BrF(g) Br2)+3F2(g) 2BrF3(g) Calculate the AHm for the reaction BrF(g)+ F2(g) BrF3(g)
9) Using the information given calculate, AH, AS and AG at 25°C (remember, for a reaction calculated using the relationship: AH = AH° reaction = nАHºf(products) - EnАHºt(reactants). PAY ATTENTION TO UNITS AND SIGN PC13(g) + Cl2 (g) → PCls(g) AHºt(kJ/mol) -287 O -374.9 (why is AHºt = 0 for Cl2?) Sºt (J/K) 311.67 223.1 364.47
Sulfur dioxide, SO2(g), can react with oxygen to produce sulfur trioxide, SO2(g), by the reaction 2 502(g) + O2(g) → 250 (8) The standard enthalpies of formation for SO2(g) and SO2(g) are AH; (SO2(8)) = –296.8 kJ/mol AH (SO2(2)) = –395.7 kJ/mol Calculate the amount of energy in the form of heat that is produced when a volume of 4.46 L of So,(g) is converted to 4.46 L of So, (g) according to this process at a constant pressure and...
Determine the enthalpy change for CS20 + 302(g) + CO2(g) + 2SO2(g); AH= ? using the following three thermochemical equations, which will be referred to as reactions (A), (B), and (C). (A) 2C(s) + 202(g) 2002(g); AH= -787.0 kJ (B) C(s) + 25(s) → CS2(); AH= 87.9 kJ (C) SO2(g) → S(s) + O2(g); AH= 296.8 kJ 1. The enthalpy change for the unknown reaction is 2. Describe the action performed on each thermochemical reaction. Reaction (A) was Reaction (B)...