A statement of the second law of thermodynamics is that a. energy is conserved in a chemical reaction. b. the entropy of the universe is continually increasing. c. the enthalpy of reaction is the difference between product and reactant enthalpies. d. spontaneous reactions are always exothermic. e. the Gibbs free energy is a function of both enthalpy and entropy.

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A statement of the second law of thermodynamics is that
a. energy is conserved in a chemical reaction.
b. the entropy of the universe is continually increasing.
c. the enthalpy of reaction is the difference between product and reactant enthalpies.
d. spontaneous reactions are always exothermic.
e. the Gibbs free energy is a function of both enthalpy and entropy.
Transcribed Image Text:A statement of the second law of thermodynamics is that a. energy is conserved in a chemical reaction. b. the entropy of the universe is continually increasing. c. the enthalpy of reaction is the difference between product and reactant enthalpies. d. spontaneous reactions are always exothermic. e. the Gibbs free energy is a function of both enthalpy and entropy.
If a process is endothermic and spontaneous, which of the following must be true?
a. DG > 0 and DH < 0
b. DH < 0 and DS > 0
C. DH > 0 and DS < 0
d. DG < 0 and DS > 0
O e. DG < 0 and DH < 0
Transcribed Image Text:If a process is endothermic and spontaneous, which of the following must be true? a. DG > 0 and DH < 0 b. DH < 0 and DS > 0 C. DH > 0 and DS < 0 d. DG < 0 and DS > 0 O e. DG < 0 and DH < 0
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