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MMLU-Pro / 4378 / You have two 1-liter containers connected to each other by a valve which is…

Problem

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

question

You have two 1-liter containers connected to each other by a valve which is closed. In one container, you have liquid water in equilibrium with water vapor at 25°C. The other container contains a vacuum. Suddenly, you open the valve. Discuss the changes that take place, assuming temperature is constant with regard to (a) the vapor pressure, (b) the concentration of the water molecules in the vapor, (c) the number of molecules in the vapor state.

category

chemistry

options

  1. Vapor pressure is halved, the concentration of the gaseous molecules is doubled, and the number of molecules is doubled
  2. Vapor pressure is unchanged, the concentration of the gaseous molecules is halved, and the number of molecules is doubled
  3. Vapor pressure, the concentration of the gaseous molecules and the number of molecules are all unchanged
  4. Vapor pressure is doubled, the concentration of the gaseous molecules is doubled, and the number of molecules is halved
  5. Vapor pressure is doubled, the concentration of the gaseous molecules is halved, and the number of molecules is unchanged
  6. Vapor pressure and the concentration of the gaseous molecules are halved, the number of molecules remains unchanged
  7. Vapor pressure is halved, the concentration of the gaseous molecules remains unchanged, and the number of molecules is doubled
  8. Vapor pressure and the concentration of the gaseous molecules remain unchanged, the number of molecules is doubled
  9. Vapor pressure and the concentration of the gaseous molecules are doubled, the number of molecules remains unchanged
  10. Vapor pressure is doubled, the concentration of the gaseous molecules and the number of molecules remain unchanged

src

stemez-Chemistry

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Source and history

upstream_id / Original problem ID
4378
task_id
49f61229-94c9-5700-a752-7729af0c163b
task_key
default--test--4378
task_revision_id
1
config / split
default / test

Official source

initial import