Cambio de estado

¿Qué es un cambio de estado?

• Un proceso químico que altera la composición de una sustancia.

• A physical process that changes a substance's state without altering its nature or chemical composition.

• A process that always involves a change in temperature.

• A process where a substance changes its chemical structure.

What are the two main types of changes of state based on temperature?

• Melting and Freezing

• Evaporation and Condensation

• Direct and Inverse

• Solidification and Sublimation

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• Sí

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What is the key difference between evaporation and ebullition?

• Evaporation occurs at a specific temperature, while ebullition occurs at any temperature.

• Evaporation is a rapid process, while ebullition is slow.

• Evaporation occurs only on the surface of the liquid, while ebullition occurs throughout the entire mass of the liquid.

• Evaporation changes liquid to solid, while ebullition changes liquid to gas.

What theory explains changes of state based on the movement of particles?

• The Theory of Relativity

• The Kinetic-Molecular Theory of Matter

• The Theory of Chemical Composition

• The Theory of Thermal Expansion

What happens to the particles of a solid during fusion?

• They slow down and become more tightly bound.

• They vibrate faster, overcome forces, and move to a liquid state.

• They undergo a chemical change, altering their composition.

• Their temperature continuously increases as they melt.