Calculate A,H for the following reaction: 5C(s) + 6H2(9) → C5H12(1) Use the following reactions and given ArH's. C5H12 (1) + 8 O2(g) → 5CO2(g) + 6H2O(g), A;H = -3505.8 kJ mol C(s) + 02(g) → CO2(g), ArH = -393.5 kJ mol1 2H2(g) + O2(9) → 2H2O(g) , A¡H = -483.5 kJ mol
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- Calculate the value (calories) for the heat of reaction. NaOH(s) ─HCl→ Na+(aq) + Cl-(aq) + H2O(l) Useful Information: Volume of HCl: .055 LVolume of water: .045 LVolume total: .1 LMolarity of HCl: 2.12 MMass of NaOH: 4.00 gΔT for reaction C: 21.3°C Specific Heat Capacity of Sodium Chloride: .94 cal g^-1 C^-1Calculate ΔH° for each reaction. a. HO• + CH4 → •CH3 + H2O b. CH3OH + HBr → CH3Br + H2O5. Calculate AH for the following reaction. C6H6(1) + 02 (g) -- ---→ C(s) + H20(1) State whether the reaction is exothermic or endothermic and why. The molar enthalpies of combustion of carbon, water and benzene, are -394 kJ/mol, -286 kJ/mol, and -3,267.4 kJ/mol, respectively. [4A,2T] I
- How do I fill out this chart Reactions: NaHCO3(s) + HCl(aq) → NaCl(s) + CO2(g) + H2O(l) Na2CO3(s) + 2HCl(aq) → 2NaCl(s) + CO2(g) + H2O(l)Write down a balanced chemical equation for the complete combustion of methanol CH3OH(I) to CO2(g) H2O(I)For which one of the following reactions is the value of Hºrn equal to AHF for the product? O2H₂ (g) + O2 (g) → 2H₂O (1) 2H₂ (g) + O2 (g) → 2H₂O(g) ON₂ (g) + O2(g) → 2NO(g) O H₂0 (1) + 1/2O2 (g) → H₂O2 (1) O none of the above
- Given the heat of formation of the following compounds: CO2(g) ΔfH° = -393.5 kJ/mol H2O(l) ΔfH° = -285.9 kJ/mol CH3OH(l) ΔfH° = -238.6 kJ/mol What is the value of ΔrH° for the reaction: CH3OH(l) + 3/2 O2(g) → CO2(g) + 2 H2O(l)Which of the following is the correct balanced equation for the complete combustion of the following hydrocarbon? OA 2C,H0 + 130, →8CO, + 10H,0 OB. C. + 602 →4C02 +4H20 OC2C,H, + 70, →8CO + 6H20 OD C,H3 + 60, →4C0; +4H20CH,(9) + 2 O,(g) AH = -809.0 kJ/mol rxn Co,(9) + 2 H,0(g) ΔΗ. = -81.3 kJ 'cond 2 H,0U) Given the energy diagram above, what is AH when two moles of methane are combusted? -401.15 kJ +1604.6 kJ -802.3 kJ +802.3 kJ +401.15 kJ O -1604.6 kJ
- explain the combustion of methane gasCOMBUSTION OF METHANE GAS:CH4 + 2O2 → CO2 + 2H2O + Energy2 C,H, +70; 20+2 C0, + 8 H,0 + heat 80 2C,H, +70; 2C+2 CO +2 Co, + 8 H,0 + heat CH, + 50; 3 CO, + 4 H,0 + heat C.H. +70. + CO, - 4 C0, + 4 H.0 + heat The complete combustion of propane gas can be represented as 2 C3Hs +7 02 2 C + 2 CO2 + 8 H20 + heat 2 C3Hs +7 02 2 C + 2 CO + 2 CO2 + 8 H2O + heat C3H8 + 5 02 + 3 CO2 + 4 H20 + heat C3H8 + 702 + CO2 4 CO2 +4 H20 + heatFor each of the following processes predict the sign of AS for the reaction. In other words, will AS sys be positive (an increase in entropy) or negative (a decrease in entropy)? AS sys is expected to be positive (an increase in entropy) because one molecule is converted into two molecules. AS sys is expected to be negative (a decrease in entropy) because a cyclic compound is converted into acyclic compounds. O AS sys is expected to be positive (an increase in entropy) because an acyclic compound is converted into cyclic compounds. O AS sys is expected to be negative (a decrease in entropy) because two molecules are converted into one molecule.