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Questions and Answers
Which law is the foundation of the discussion of the role of energy in chemistry?
Which law is the foundation of the discussion of the role of energy in chemistry?
- Second Law of thermodynamics
- Zeroth Law of thermodynamics
- First Law of thermodynamics (correct)
- Third Law of thermodynamics
What is the key idea of Topic 2A?
What is the key idea of Topic 2A?
- The total energy of a system is always increasing
- The total energy of a system depends on its surroundings
- The total energy of an isolated system is constant (correct)
- The total energy of a system is always decreasing
What does the system refer to in the context of thermodynamics?
What does the system refer to in the context of thermodynamics?
- The region outside the system
- The discussion of the properties of gases
- The part of the world of interest (correct)
- The perfect gas law
What is the purpose of dividing the universe into system and surroundings in thermodynamics?
What is the purpose of dividing the universe into system and surroundings in thermodynamics?
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What does the First Law of thermodynamics state about the total energy of an isolated system?
What does the First Law of thermodynamics state about the total energy of an isolated system?
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Study Notes
Laws of Thermodynamics
- The foundation of the discussion of the role of energy in chemistry is the First Law of Thermodynamics.
Topic 2A Key Idea
- The key idea of Topic 2A is that energy cannot be created or destroyed, only converted from one form to another.
Thermodynamic System
- In thermodynamics, the system refers to the specific part of the universe being studied.
- The purpose of dividing the universe into system and surroundings is to isolate the specific area of study and understand how energy is exchanged between the system and its surroundings.
First Law of Thermodynamics
- The First Law of thermodynamics states that the total energy of an isolated system is constant, meaning energy cannot be created or destroyed, only converted from one form to another.
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