Using one of the Lewis structures for benzene (C6H6), estimate ∆Hf° for C6H6(g) using bond energies and given that the standard enthalpy of formation of C(g) is 717 kj/mol. The experimental ∆H,° value for C6H6(g) is 83 kj/mol. Explain the discrepancy between the experimental value and the calculated ∆Hf° value for C6H6(g).
Answer to relevant QuestionsConsider the following reactions. For parts b-d, reference Exercise 58. a. When C5H12 is reacted with Cl2(g) in the presence of ultraviolet light, four different monochlorination products form. What is the structure of C5H12 ...Consider the following reactions at some temperature: 2NOCl( g) ⇌ 2NO( g) + Cl2( g) K = 1.6 × 1025 2NO( g) ⇌ N2( g) + O2( g) K = 1 × 1031 For each reaction some quantities of the reactants were placed in separate ...Write expressions for K and Kp for the following reactions. a. 2NH3(g) + CO2(g) ⇌ N2CH4O(s) + H2O(g) b. 2NBr3(s) ⇌ N2(g) + 3Br2(g) c. 2KClO3(s) ⇌ 2KCl(s) + 3O2(g) d. CuO(s) + H2(g) ⇌ Cu(l) + H2O(g) For the reaction 2H2O(g) ⇌ 2H2(g) + O2(g) K = 2.4 × 10-3 at a given temperature. At equilibrium in a 2.0- L container, it is found that [H2O(g)] = 1.1 × 10-1 M and [H2(g)] = 1.9 × 10-2 M. Calculate the moles of O2(g) ...The equilibrium constant is 0.0900 at 25oC for the reaction H2O(g) + Cl2O(g) ⇌ 2HOCl(g) For which of the following sets of conditions is the system at equilibrium? For those which are not at equilibrium, in which direction ...
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