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1. You have probably heard the two sayings, "Nothing lasts forever" and "Diamonds are forever". They can't both be right, which one is correct?! Calculate the standard free energy change at 298K for the conversion of diamonds to graphite and determine whether or not the reaction is spontaneous under standard conditions:
C(diamond) --> C(graphite);
?Hf°(diamond) = 1.895 kJ/mol; S°(diamond) = 2.337 J mol- 1K-1; S°(graphite) = 5.740 J mol-1K-1.A. 2.19 kJ; not spontaneousB. -1.90 kJ; spontaneousC. -2.90 kJ; spontaneousD. 1.90 kJ; not spontaneousE. 4.04 kJ; not spontaneous
2. Even if a processs is "spontaneous", what other information is needed to tell if the reaction will actually proceed?
A. Equilibrium constant.B. Rate of reaction.C. Reactant pressuresD. Reactant and product pressuresE. Temperature.
125 mole of oxygen gas is added to carbon in a .25L container. The mixture equilibriates at 500K. Calculate the equilibrium concentration of carbon monoxide, knowing that K=.086 at 500K.
The dipole moment of a compound depends on the resultant partial charges based on the electronegativities of the individual constituents present in the compound. Based on this definition, write the resulting dipole moment in the following compounds
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