EX. Estimate the normal boiling point of ethanol. Free Energy and the Equilibrium Constant is the standard free-energy change (i.e., for a reaction at standard conditions). any Go other conditions… EX. Calculate at 298 K, given the following: N2(g) + 3 H2(g) 2 G NH3(g) 1.0 atm 3.0 atm 0.50 atm At equilibrium, = 0 and Q = K, so… G EX. Calculate and K at 298 K for… H2(g) + Br2(g) 2 HBr(g) Go Assume all gases are at 1.00 atm of pressure. What if we are relating/trying-to-find and/or K, but NOT at standard conditions? G -- To approx. K, given and nonstandard T: G
EX. Estimate the normal boiling point of ethanol. Free Energy and the Equilibrium Constant Go is the standard free-energy change (i.e., for a reaction at standard conditions). any other conditions… EX. Calculate G at 298 K, given the following: N2(g) + 3 H2(g) 2 NH3(g) 1.0 atm 3.0 atm 0.50 atm At equilibrium, G = 0 and Q = K, so… EX. Calculate Go and K at 298 K for… H2(g) + Br2(g) 2 HBr(g) Assume all gases are at 1.00 atm of pressure. What if we are relating/trying-to-find G and/or K, but NOT at standard conditions? -- To approx. K, given G and nonstandard T:
19_thermodyn_stunotes_s12.docx