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. 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
4. Which of these statements is false?
For a spontaneous reaction DG is negative Independent of T, a reaction must be spontaneous if DH = 0 and DS is positive A spontaneous reaction is always fast A spontaneous reaction occurs without outside intervention None of the above is false
5. Liquid sample A freezes at -8°C. Determine the signs of DH, DS, and DG.
+,+,+ +,-,- -,-,- -,+,0 None of the above
| about us | contact us
tutorials index | organic
chemistry | practice tests | online
quizzes | reference tools
site copyright (c) 2002 to neopages.com