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water vapor can be maintained at 100 oC and 2 atm pressure for a time; it will spontaneously revert to a liquid. calculate delta H, delta S, delta G for g->l. Assume vapor behaves ideally and liquid is basically imcompressible. This is equivalent to assuming the equation of state for the liquid phase is Vm=.000018exp(.0002*(T-100)*exp(-4.6e-10*P). Vm is the molar volume of the liquid water. Hints: first get delta G using an appropriate 3 step path. Then get the other quantites from delta H: (d delta_G/dT|P)=delta_S; delta_H=delta_G-delta(TS)=delta_G-Tdelta_S.
Why does LiBr have a stronger lattice energy then LiF Why does NaCl have a higher lattice energy then Mg3N2. ( I thought it would LiF because smaller ion and Mg3N2 because greater charge)
Draw additional molecules of sulfanilamide and hypothesize the intermolecular interactions that are most important for providing a stable and selective crystal structure
Draw a structure containing only carbon and hydrogen that is a chiral alkyne with six carbon atoms.
He was surprised that most of the white solid melted sharply between 121 and 122 C but that a small amount remained unmelted even at temperatures above 200 C. Explain this behavior.
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A gas was enclosed in a rigid-walled container. The initial temperature and pressure were 52°C and 0.55 atm, respectively. If the final pressure were 2.41 atm.
How many grams of phosphorus react with 38.1 L of O2 at STP to form tetraphosphorus decaoxide. P4(s) + 5 O2(g) P4O10(s)
The calorimeter contains exactly 281 g of water, and the temperature increases by 1.126°C. Calculate the heat given off by the burning Mg, in kJ/g and in kJ/mol.
A piece of metal of mass 22 g at 92C is placed in a calorimeter containing 53.7 g of water at 21C. The final temperature of the mixture is 55.3C. What is the specific heat capacity of the metal?
What mass of sucrose should be combined with 474 g of water to make a solution with an osmotic pressure of 8.20 atm at 310K ?
Consider two samples of liquid: one mole of water H2O and one mole of ethanol C2H5OH. The density of water is 1.0 g/mL, and the density of ethanol is 0.785 g/mL. Answer each of the following questions by selecting the correct choice.
In the following reaction, Zn (s) + CuSO4 (aq) ? ZnSO4 (aq) + Cu (s) What is the reducing agent and what is the oxidixing agent
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