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MMLU / During the investigation of a chemical reaction by a chemistry student, she was…

Problem

Answer published by the source. Consult the official source to check your work against its answer.

question

During the investigation of a chemical reaction by a chemistry student, she was able to determine that the reaction was nonspontaneous at 1 atm and 298 K. However, she learned that cooling the system with dry ice (-78°C) caused the reaction to become spontaneous. Which of the following combinations must apply to this reaction?

choices

  1. ΔH < 0, ΔS < 0, and ΔG = 0
  2. ΔH > 0, ΔS < 0, and ΔG > 0
  3. ΔH < 0, ΔS < 0, and ΔG > 0
  4. ΔH > 0, ΔS > 0, and ΔG > 0

subject

high_school_chemistry

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Source and history

task_id
5bbd13e3-4aab-5b09-8641-bcf97ee3addd
task_key
all--test--5bbd13e3-4aab-5b09-8641-bcf97ee3addd
task_revision_id
1
config / split
all / test

Official source

initial import