What are the Laws of Thermodynamics?
Laws of Thermodynamics

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Physics
•
9th - 12th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
The Laws of Thermodynamics are fundamental principles that describe how energy moves and changes in a system. They include the First Law (energy conservation), the Second Law (entropy), and the Third Law (absolute zero).
2.
FLASHCARD QUESTION
Front
What is the First Law of Thermodynamics?
Back
The First Law states that energy cannot be created or destroyed, only transformed from one form to another. This is also known as the law of energy conservation.
3.
FLASHCARD QUESTION
Front
What is the Second Law of Thermodynamics?
Back
The Second Law states that in any energy transfer, the total entropy of a closed system can never decrease over time. It implies that energy transformations are not 100% efficient.
4.
FLASHCARD QUESTION
Front
What is entropy?
Back
Entropy is a measure of the disorder or randomness in a system. Higher entropy means more disorder and less usable energy.
5.
FLASHCARD QUESTION
Front
What happens to entropy as ice melts?
Back
Entropy increases as ice melts because the solid structure of ice becomes more disordered as it turns into liquid water.
6.
FLASHCARD QUESTION
Front
What is absolute zero?
Back
Absolute zero is the theoretical temperature at which a system's entropy reaches its minimum value, and molecular motion stops. It is 0 Kelvin or -273.15°C.
7.
FLASHCARD QUESTION
Front
How does an insulated bottle work?
Back
An insulated bottle reduces heat transfer between its contents and the environment, keeping hot liquids hot and cold liquids cold for longer periods.
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