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Questions and Answers
Which temperature is considered absolute zero?
Which temperature is considered absolute zero?
- 0°C
- 0 K (correct)
- 0 Kelvin
- 0°F
At temperatures close to 0 K, metals improve their conductive properties.
At temperatures close to 0 K, metals improve their conductive properties.
- False
- True (correct)
What are the two new states of matter that appear at temperatures close to 0 K?
What are the two new states of matter that appear at temperatures close to 0 K?
- Plasma and gas
- Plasma and Bose-Einstein condensate
- Liquid and solid
- Bose-Einstein condensate and fermionic condensate (correct)
In the Bose-Einstein condensate and fermionic condensate, atoms behave as if they were a single entity.
In the Bose-Einstein condensate and fermionic condensate, atoms behave as if they were a single entity.
Materials under extreme cooling conditions acquire superfluidity.
Materials under extreme cooling conditions acquire superfluidity.
How many states of matter, considered the most important ones, are mentioned in the text?
How many states of matter, considered the most important ones, are mentioned in the text?
What does it mean when molecules no longer vibrate at all?
What does it mean when molecules no longer vibrate at all?
What is the boiling temperature of nitrogen gas?
What is the boiling temperature of nitrogen gas?
Which state of matter does the Sun (considered a gigantic star) belong to?
Which state of matter does the Sun (considered a gigantic star) belong to?
What is the most common state of matter on Earth?
What is the most common state of matter on Earth?
What happens to a substance when it reaches 100°C at sea level?
What happens to a substance when it reaches 100°C at sea level?
What state of matter is a liquefied gas under pressure?
What state of matter is a liquefied gas under pressure?
What happens to a gas when it reaches very high temperatures?
What happens to a gas when it reaches very high temperatures?
What is the name of the state of matter where protons and neutrons decompose into smaller particles?
What is the name of the state of matter where protons and neutrons decompose into smaller particles?
Where is plasma commonly seen in the universe?
Where is plasma commonly seen in the universe?
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Study Notes
Temperature and States of Matter
- Absolute zero is considered to be at a temperature of 0 K.
- At temperatures close to 0 K, metals exhibit improved conductive properties.
New States of Matter
- At temperatures close to 0 K, two new states of matter emerge: Bose-Einstein condensate and fermionic condensate.
- In these states, atoms behave as if they were a single entity.
- Materials under extreme cooling conditions also acquire superfluidity.
States of Matter
- There are four important states of matter mentioned: solid, liquid, gas, and plasma.
- At absolute zero, molecules no longer vibrate at all.
Properties of Substances
- Nitrogen gas has a boiling temperature of -196°C.
- The Sun, a gigantic star, is an example of a plasma state of matter.
- The most common state of matter on Earth is solid.
Phase Changes
- When a substance reaches 100°C at sea level, it turns into a gas.
- A liquefied gas under pressure is an example of a liquid state of matter.
- At very high temperatures, a gas ionizes and becomes a plasma state of matter.
- At extremely high temperatures, a plasma state of matter can decompose into smaller particles, known as a quark-gluon plasma.
- Plasma is commonly seen in the universe, particularly in stars.
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