A. total entropy
B. thermodynamics
C. dynamic equilibrium
D. product reversibility2
Answer: C
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A. $\Delta H > 0$ and $\Delta S > 0$
B. $\Delta H > 0$ and $\Delta S < 0$
C. $\Delta H < 0$ and $\Delta S > 0$
D. $\Delta H < 0$ and $\Delta S < 0$
Answer: A
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A. $2NH_3(s) \rightarrow N_2(g) + 3 H_2(g)$
B. $CaO(s) + CO_2(g) CaCO_3(s)$
C. $NaCl(s) \rightarrow Na^+(aq) + Cl^-(aq)$
D. $N_2O_4(g)\rightarrow 2 NO_2(g)$
Answer: B
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A. increasing the temperature of a gas.
B. freezing a liquid.
C. evaporating a liquid.
D. forming mixtures from pure substances.
Answer: B
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A. entropy is zero for elements under standard conditions.
B. entropy is a state function.
C. a positive change in entropy denotes a change toward greater disorder
D. entropy values are greater than or equal to zero.
Answer: A
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