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Questions and Answers
In which state of matter are the forces of attraction between particles maximum?
In which state of matter are the forces of attraction between particles maximum?
- Solid (correct)
- Liquid
- Gas
- None of the above
Which state of matter has the most ordered arrangement of particles?
Which state of matter has the most ordered arrangement of particles?
- Solid (correct)
- Liquid
- Gas
- None of the above
What causes cooling through the process of evaporation?
What causes cooling through the process of evaporation?
- Particles from the surface gaining enough energy to change into the vapour state (correct)
- The latent heat of vaporisation
- The temperature and pressure of the liquid
- Particles from the bulk (whole) of the liquid changing into the vapour state
What is sublimation in terms of changes of state?
What is sublimation in terms of changes of state?
What does boiling represent in terms of the states of matter?
What does boiling represent in terms of the states of matter?
What is the primary factor that determines the rate of evaporation?
What is the primary factor that determines the rate of evaporation?
Which process involves the change of gaseous state directly to solid state without going through liquid state?
Which process involves the change of gaseous state directly to solid state without going through liquid state?
What represents a bulk phenomenon in terms of changes of state?
What represents a bulk phenomenon in terms of changes of state?
In which state of matter are the forces of attraction between particles the minimum?
In which state of matter are the forces of attraction between particles the minimum?
What is the heat energy required to change 1 kg of a liquid to gas at atmospheric pressure at its boiling point called?
What is the heat energy required to change 1 kg of a liquid to gas at atmospheric pressure at its boiling point called?
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Study Notes
States of Matter
- The forces of attraction between particles are maximum in the solid state.
- The solid state has the most ordered arrangement of particles.
Evaporation and Cooling
- Evaporation causes cooling due to the energy required to break the intermolecular forces between particles.
- The primary factor that determines the rate of evaporation is the surface area.
Changes of State
- Sublimation is the process of changing from the solid state directly to the gaseous state without going through the liquid state.
- Boiling represents the change of state from liquid to gas.
- The process that involves the change of gaseous state directly to solid state without going through the liquid state is deposition.
Bulk Phenomenon
- Changes of state represent a bulk phenomenon.
Forces of Attraction
- The forces of attraction between particles are minimum in the gaseous state.
Latent Heat
- The heat energy required to change 1 kg of a liquid to gas at atmospheric pressure at its boiling point is called latent heat of vaporization.
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