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MMLU-Pro / 4507 / Formation of a solution can often be visualized as a three-step process. Step 1.…

Problem

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

question

Formation of a solution can often be visualized as a three-step process. Step 1. Solvent molecules are separated from each other to make space for the solute. Step 2. Solute molecules are separated so they fit into spaces in the solvent. Step 3. Separated solute and solvent are brought together, filling in the spaces. Which of the following statements about the energy involved in the above is correct?

category

chemistry

options

  1. Step 1 is endothermic, steps 2 and 3 are exothermic.
  2. All three steps are endothermic.
  3. Steps 1 and 3 are exothermic, and step 2 is endothermic.
  4. All three steps are exothermic.
  5. Steps 1 and 3 are endothermic, and step 2 is exothermic.
  6. Step 1 is exothermic, steps 2 and 3 are endothermic.
  7. Step 3 is exothermic, steps 1 and 2 are neither exothermic nor endothermic.
  8. Step 1 and 2 are exothermic, step 3 is neither exothermic nor endothermic.
  9. Steps 1 and 2 are exothermic, and step 3 is endothermic.
  10. Steps 1 and 2 are endothermic, and step 3 is exothermic.

src

ori_mmlu-high_school_chemistry

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Source and history

upstream_id / Original problem ID
4507
task_id
2f47bca2-082c-5b2d-b2b8-2c87fc011918
task_key
default--test--4507
task_revision_id
1
config / split
default / test

Official source

initial import