thermo f2012

What is the driving force of the reacaon if all the

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Unformatted text preview: liquids are pure. •  Gases have parAal pressures of 1 atm (book has 1 bar). •  No standard temperature, most tables use 25°C. PracAce. ΔE = q + w ΔG° =  ­RT ln K ΔG = ΔG° + RT ln Q = RT ln (Q/K) ΔE = q + w ΔG° =  ­RT ln K ΔG = ΔG° + RT ln Q = RT ln (Q/K) •  A mole of gas is in a cylinder with movable piston. What is the change in internal energy of the gas when it absorbs 234 J of heat and is compressed by 534 J of work? •  The equilibrium constant for the reacAon, N2(g) + 3H2(g) ⇌ 2NH3(g), is 5.8 x 105 at 25°C. What is the driving force of the reacAon if all the components are present at 1 atm pressure? This amount represents how far the standard state is from equilibrium. ΔE = q + w ΔG° =  ­RT ln K ΔG = ΔG° + RT ln Q = RT ln (Q/K) •  AgCl(s) ⇌ Ag+(aq) + Cl ­(aq). The equilibrium constant for this reacAon is 1.8 x 10 ­10. What is the driving force of the reacAon if the components are all present at standard ­state condiAons? (What are the standard ­state condiAons?) Compare the K’s for quesAons 2 and 3 and the driving forces for the reacAons. Do the results hold with what you know about product ­favored and reactant ­favor...
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