Kinetic Particle Theory of Matter
Chemistry ⇒ States of Matter
Kinetic Particle Theory of Matter starts at 7 and continues till grade 12.
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A gas is compressed at constant temperature. What happens to the average kinetic energy of its particles?
A sealed syringe contains air. When the plunger is pushed in, the volume of air decreases. Explain this observation using the kinetic particle theory.
A student observes that a drop of ink spreads out in water until the color is evenly distributed. Explain this observation using the kinetic particle theory.
A student places a crystal of potassium permanganate in water and observes the color spreading throughout the water. What process is being observed?
A gas is compressed at constant temperature. What happens to the average kinetic energy of its particles?
A sealed syringe contains air. When the plunger is pushed in, the volume of air decreases. Explain this observation using the kinetic particle theory.
A student observes that a drop of ink spreads out in water until the color is evenly distributed. Explain this observation using the kinetic particle theory.
A student places a crystal of potassium permanganate in water and observes the color spreading throughout the water. What process is being observed?
Which of the following best describes the energy changes during boiling?
(1) Particles lose energy and move closer together.
(2) Particles gain energy and move further apart.
(3) Particles remain stationary.
(4) Particles lose energy and vibrate less.
Which of the following best describes the kinetic particle theory of matter?
(1) Matter is made up of particles that are always stationary.
(2) Matter is made up of particles that are in constant random motion.
(3) Matter is made up of waves that do not move.
(4) Matter is continuous and not made of particles.
Which of the following best explains why gases can be compressed easily?
(1) Gas particles are tightly packed.
(2) Gas particles have strong forces of attraction.
(3) Gas particles are far apart with large spaces between them.
(4) Gas particles are arranged in a fixed pattern.
Which of the following best explains why liquids have a definite volume but no definite shape?
(1) Particles are fixed in place.
(2) Particles can move past each other but are still close together.
(3) Particles are far apart and move freely.
(4) Particles are arranged in a regular pattern.
Fill in the blank: The change of state from gas to liquid is called __________.
Fill in the blank: The energy required to change a substance from solid to liquid at its melting point is called __________ heat.
Fill in the blank: The process by which a gas changes directly into a solid is called __________.
Fill in the blank: The process by which a liquid changes into a gas at a temperature below its boiling point is called __________.
State whether the following statement is true or false: In solids, the particles vibrate about fixed positions but do not move freely.
State whether the following statement is true or false: The temperature of a substance is a measure of the average kinetic energy of its particles.
True or False: During melting, the temperature of a pure substance remains constant until all the solid has melted.
True or False: The kinetic particle theory can be used to explain diffusion in gases.
