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Questions and Answers
What does the distance between atoms influence in the states of matter?
What does the distance between atoms influence in the states of matter?
- The color of the substance
- The motion of atoms (correct)
- The temperature of the substance
- The weight of the atoms
Which of the following substances undergoes sublimation?
Which of the following substances undergoes sublimation?
- Sugar
- Water
- Dry ice (correct)
- Ice
What is the main characteristic of sublimation?
What is the main characteristic of sublimation?
- It requires cooling to occur
- It cannot be reversed
- It converts solid directly into liquid
- It involves the formation of a gas without a liquid phase (correct)
In the example given, what happens to ammonium chloride when heated?
In the example given, what happens to ammonium chloride when heated?
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The term 'sublimation' suggests that there is a process occurring without which phase?
The term 'sublimation' suggests that there is a process occurring without which phase?
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What is indicated by the notation 'Sub li' mation?
What is indicated by the notation 'Sub li' mation?
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What happens to the particles of a solid during sublimation?
What happens to the particles of a solid during sublimation?
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Study Notes
States of Matter
- Three states of matter: solid, liquid, and gas, each exhibiting unique particle motion.
- Particle motion is influenced by distance between atoms; increased distance allows more space for greater motion.
Sublimation
- Sublimation refers to the direct transition from solid to vapor without passing through the liquid state.
- Common substances that undergo sublimation include dry ice, naphthalene balls (mothballs), iodine, and ammonium chloride.
- Example process: Heating camphor or ammonium chloride in a covered dish results in vaporization, with vapors condensing back into solid form when they contact cooler surfaces.
- Mnemonic for sublimation: "Subtract Liquid phase" emphasizes that sublimation skips the liquid state completely.
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