18.93 The standard free energies of formation (AG) of the three isomers of pentane (see p. 365) in the gas phase are: n-

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18 93 The Standard Free Energies Of Formation Ag Of The Three Isomers Of Pentane See P 365 In The Gas Phase Are N 1 (46.58 KiB) Viewed 48 times

18.93 The standard free energies of formation (AG) of the three isomers of pentane (see p. 365) in the gas phase are: n-pentane: -8.37 kJ/mol; 2-methylbutane: -14.8 kJ/mol; 2,2-dimethylpropane: – 15.2 kJ/mol. (a) Determine the mole percent of these molecules in an equilibrium mixture at 25°C. (b) How does the stability of these molecules depend on the extent of branching?