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What is the first law of thermodynamics?
What is the first law of thermodynamics?
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Practice Questions
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Q1
What is the first law of thermodynamics?
Energy cannot be created or destroyed
Entropy of an isolated system always increases
Heat cannot spontaneously flow from a colder body to a hotter body
The total energy of a system is constant
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The first law of thermodynamics states that energy cannot be created or destroyed, only transformed from one form to another.
Questions & Step-by-step Solutions
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Q
Q: What is the first law of thermodynamics?
Solution:
The first law of thermodynamics states that energy cannot be created or destroyed, only transformed from one form to another.
Steps: 5
Show Steps
Step 1: Understand that energy is a property that can exist in different forms, like heat, light, or motion.
Step 2: Learn that the first law of thermodynamics is also known as the law of energy conservation.
Step 3: Realize that this law means energy cannot just appear or disappear.
Step 4: Know that energy can only change from one form to another, like turning chemical energy in food into kinetic energy when you move.
Step 5: Remember that the total amount of energy in a closed system remains constant, even if it changes forms.
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