Science

• What is the particulate nature of matter?

  It refers to the concept that matter is made up of small particles.
• What is the purpose of a heating curve?


  A heating curve illustrates how temperature changes as heat is added to a substance.
• What technique should be used to analyze a heating curve?

  One should assess the gain or loss of heat.
• What happens to the kinetic energy during the heating process?

  It is converted to less or more kinetic energy depending on the phase change.
• What is the arrangement of particles in a solid?

  Particles in a solid are closely packed in an orderly manner.
• How does the arrangement of particles in a liquid differ from that in a solid?

  In a liquid, particles are closely packed but in a disorderly manner.
• What is the movement of particles in a gas?

  Particles in a gas move quickly and randomly in any direction.
• Why does the temperature remain constant during phase changes like melting or boiling?

  Because the energy gained or lost is used to change the state rather than increase the temperature.
• What is the movement of particles in a solid?

  Particles in a solid vibrate in a fixed position.
• Why can gas be compressed but solid cannot?

  Gas has a lot of empty space between particles, while solid has little empty space.
• How does the arrangement of particles in a gas compare to that in a liquid?

  Gas particles are very far apart, while liquid particles are closely packed but disordered.
• What happens to the attractive forces between particles during the heating process?


  The attractive forces weaken as heat is gained.
• What is the boiling point of a liquid?

  The boiling point is the temperature at which a liquid turns into gas.
• What is the melting point of a solid?


  The melting point is the temperature at which a solid turns into liquid.
• What occurs during the process of condensation?

  During condensation, a gas loses heat and turns into a liquid.
• What is the significance of temperature remaining constant during phase changes?

  It indicates that the energy is being used for the phase change rather than increasing temperature.
• How does the arrangement of particles affect the properties of solids, liquids, and gases?

  The arrangement of particles determines their density, compressibility, and ability to flow.
• What happens to the attractive forces in a liquid compared to a solid?

  The attractive forces in a liquid are weaker than in a solid.
• What is the characteristic movement of liquid particles?

  Liquid particles slide past one another freely.
• What is the characteristic movement of gas particles?

  Gas particles move quickly and randomly in any direction.
• How does the arrangement of particles in a solid affect its compressibility?

  The closely packed arrangement of particles in a solid makes it incompressible.
• What is the relationship between temperature and kinetic energy in solids?

  In solids, temperature remains constant because the kinetic energy is not gained significantly.
• How does the arrangement of particles in a gas contribute to its ability to flow?

  The far apart arrangement of gas particles allows them to move freely and flow easily.