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Questions and Answers
What type of system can exchange both matter and energy with the surroundings?
What type of system can exchange both matter and energy with the surroundings?
- Isolated system
- Closed system
- Open system (correct)
- None of the above
Which type of system is a thermos containing hot coffee in contact with its vapor?
Which type of system is a thermos containing hot coffee in contact with its vapor?
- Isolated system (correct)
- Closed system
- Open system
- None of the above
Boiling water in a closed steel vessel is an example of which type of system?
Boiling water in a closed steel vessel is an example of which type of system?
- Isolated system
- Closed system (correct)
- Open system
- None of the above
What type of system can neither exchange mass nor energy with the surroundings?
What type of system can neither exchange mass nor energy with the surroundings?
Which type of system allows reactions carried out in open containers?
Which type of system allows reactions carried out in open containers?
Which type of system continuously exchanges matter and energy with the surroundings?
Which type of system continuously exchanges matter and energy with the surroundings?
What type of properties are associated with a macroscopic system?
What type of properties are associated with a macroscopic system?
When is a system considered homogeneous?
When is a system considered homogeneous?
What is a heterogeneous system?
What is a heterogeneous system?
In what state is a gaseous mixture considered?
In what state is a gaseous mixture considered?
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Study Notes
Types of Systems
- Open System: Can exchange both matter and energy with the surroundings. Example: A boiling pot of water.
- Closed System: Can exchange energy but not matter. Example: A thermos with hot coffee in contact with its vapor.
- Isolated System: Cannot exchange either mass or energy with the surroundings. Example: A perfectly insulated container.
- Continuous System: Allows for the continuous exchange of matter and energy with the surroundings. Example: Reactions in open containers.
System Properties
- Macroscopic Properties: Associated with the bulk behavior of a system, not dependent on individual particle behavior, include temperature, pressure, and volume.
- Homogeneous System: A system is considered homogeneous when its composition is uniform throughout. All parts have the same properties.
- Heterogeneous System: Contains visibly different phases or components, where properties vary from one part to another.
Gaseous Mixtures
- A gaseous mixture is considered a homogeneous system when the components are completely mixed and uniformly distributed at a macroscopic level.
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