1 when work is done on the system g to bring it into an ordered state s which of the following i

1. When work is done on the system (+∆G) to bring it into an ordered state (-∆S), the system is

Question

When work is done on the system (+ΔG) to bring it into an ordered state (-ΔS), which of the following is true? a. The system releases heat. b. The process is spontaneous. c. There is no heat exchange between the system and the surroundings. d. The system is endothermic. 2. If ΔH is negative and ΔS is positive, which of the following is true? a. ΔG is positive at any temperature. b. ΔG is negative at any temperature. c. ΔG is positive only below 0°C. d. ΔG is negative only above 0°C. 3. What is the value of ΔG when ΔH = -22 kJ/mol and ΔS = -54 J/mol•K at 280°C in kJ/mol? a. 38 b. -20 c. 20 d. -38 4. Which of the following is incorrect about the entropy of a substance? a. Sliquid > Ssolid b. Sliq > 0 c. Sgas = 0 d. Sgas > Ssolid

          When work is done on the system (+ΔG) to bring it into an ordered state (-ΔS), which of the following is true?
a. The system releases heat.
b. The process is spontaneous.
c. There is no heat exchange between the system and the surroundings.
d. The system is endothermic.

2. If ΔH is negative and ΔS is positive, which of the following is true?
a. ΔG is positive at any temperature.
b. ΔG is negative at any temperature.
c. ΔG is positive only below 0°C.
d. ΔG is negative only above 0°C.

3. What is the value of ΔG when ΔH = -22 kJ/mol and ΔS = -54 J/mol•K at 280°C in kJ/mol?
a. 38
b. -20
c. 20
d. -38

4. Which of the following is incorrect about the entropy of a substance?
a. Sliquid > Ssolid
b. Sliq > 0
c. Sgas = 0
d. Sgas > Ssolid

Added by Joseph B.

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