I am having trouble understanding the following chemistry questions, please advise :) 1. Thermodynamic systems that have a high stability tend to demonstrate: A. minimum H, minimum S B. minimum H, maximum S C. maximum H, minimum S D. maximum H, maximum S
I am having trouble understanding the following chemistry questions, please advise :)
1.
A. minimum H, minimum S
B. minimum H, maximum S
C. maximum H, minimum S
D. maximum H, maximum S
2. Which of the following statements regarding the spontaneity of chemical and physical changes is correct?
A. A reaction may be spontaneous only in one direction
B. A process can sometimes be spontaneous in the direction that moves it away from equilibrium.
C. Endothermic processes are never spontaneous.
D. A reactant favored process cannot be spontaneous.
E. Spontaneous changes occur only in the direction that leads to equilibrium.
3. The principle quantum number for the 3 outermost electrons in Sc are
A. 3, 3 and 3.
B. 4, 4 and 3.
C. 4, 4 and 4.
D. 3, 3, and 4.
E. 4, 4, and 5.
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