Which of following can actually lower internal energy of a cool room
A a fan
B a refrigerator with its door closed
C an AC in a middle of room
D an AC partially exposed to outside
Explain the answer
Answers
(b) a refrigerator whith it's door closed
Concept Introduction:
The entire amount of potential and kinetic energy that a body's molecules and ultimate components have due to their relative locations and motions inside the body, excluding the energy resulting from wave motions through the body and vibrations of the body.
Explanation:
We have been given a multiple-choice question.
We have to find the correct option.
It refers to the intangible microscopic energy at the atomic and molecular scales, which is distinct in scale from the enormous organised energy and momentum with moving objects. For instance, a glass of water on a table at normal temperature appears to have no visible energy, either potential or kinetic.
Final Answer:
A refrigerator with its door closed can actually lower internal energy of a cool room.
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