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constants
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1. Which statement is FALSE?
DS increases as pressure decreases
for an ideal gas, enthalpy is not pressure-dependent
the lowest value of free energy occurs at equilibrium
DS increases as volume increases
all statements are true

2. The maximum possible useful work obtainable from a process at a constant temperature and pressure is equal to the change in:
temperature
DH
DS
free energy
work

3. Liquid sample A freezes at -8C. Determine the signs of DH, DS, and DG.
+,+,+
+,-,-
-,-,-
-,+,0
None of the above

4. For the phase change of liquid to solid, DS is:
0
positive
negative
positive at high temperature
none of the above

5. A change of state occurs within a system and produces 64.0 kB of heat which is transferred to the surrounding at a constant pressure and a constant temperature of 300K. For this process DSsurroundings is:
64.0 kJ
-64.0 kJ
-213 J/K
213 J/K
none of these

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