Q: A refrigerator must do work to reverse the normal direction of what? Read this paragraph and choose the correct option from the provided answers: A refrigerator must do work to reverse the normal direction of thermal energy flow. Work involves the use of force to move something, and doing work takes energy. In a refrigerator, the energy is usually provided by electricity. You can read in detail in the Figure below how a refrigerator does its work. For an animation of how a refrigerator works, go to this URL: http://www. chemistry. wustl. edu/~edudev/LabTutorials/CourseTutorials/LabTutorials/Thermochem/fridge_movie. html. Choices: - visible energy flow - coolant energy flow - spectral energy flow - thermal energy flow A:
Answer:
thermal energy flow