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MMLU / A 25 g sample of a solid was heated to 100 °C and then quickly transferred to an…

Problem

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

question

A 25 g sample of a solid was heated to 100 °C and then quickly transferred to an insulated container holding 100 g of water at 26 °C. The temperature of the mixture rose to reach a final temperature of 37 °C. Which of the following can be concluded?

choices

  1. The sample lost more thermal energy than the water gained because the sample temperature changed more than the water temperature did.
  2. Even though the sample temperature changed more than the water temperature did, the sample lost the same amount of thermal energy as the water gained.
  3. The sample temperature changed more than the water temperature did; therefore the heat capacity of the sample must be greater than the heat capacity of the water.
  4. The final temperature is less than the average starting temperatures; therefore the equilibrium constant must be less than 1.

subject

high_school_chemistry

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Source and history

task_id
b9624e0c-8125-5353-87bf-fc85a9ea9303
task_key
all--test--b9624e0c-8125-5353-87bf-fc85a9ea9303
task_revision_id
1
config / split
all / test

Official source

initial import