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Particle Knowledge

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Questions and Answers

Which of the following statements about particles is correct?

Particles can vary in size and quantity (correct)

Particles can only be described by their physical properties

Particles are always connected in an aggregation

Particles can only be used to create scientific models of small objects

Which of the following is an example of a subatomic particle?

Powder

Molecule

Atom

Electron (correct)

What is the most common usage of the term 'particulate'?

To describe small localized objects

To define objects with volume, density, or mass

To refer to pollutants in the Earth's atmosphere (correct)

To refer to microscopic particles

What can particles be used to create models of?

Celestial bodies in motion Signup and view all the answers

What is the noun 'particulate' most frequently used to refer to?

Pollutants in the Earth's atmosphere Signup and view all the answers

According to the kinetic theory of gases, what is the assumed size of the particles compared to the average distance between them?

The particles are assumed to be smaller than the average distance between them. Signup and view all the answers

What type of collisions do the particles in a gas undergo, according to the kinetic theory of gases?

Elastic collisions with each other and with the walls of the container. Signup and view all the answers

Which properties of gases does the kinetic theory of gases explain?

Both macroscopic properties such as volume, pressure, and temperature, and transport properties such as viscosity, thermal conductivity, and mass diffusivity. Signup and view all the answers

What type of model does the basic version of the kinetic theory of gases describe?

An ideal gas model that considers no other interactions between the particles. Signup and view all the answers

What is the kinetic theory of gases connected to due to the time reversibility of microscopic dynamics?

The theory of thermodynamics. Signup and view all the answers