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Chemistry - Gases and Their Properties - Revised

Improve your understanding of the characteristics and properties of gases and learn how to calculate the Ideal Gas Law.

Publisher: Khan Academy
This free online chemistry course will teach you about the characteristics of ideal gasses, the concept of the Ideal Gas Law, the behavior of gases under many different conditions, and much more. Gases have neither fixed volume nor shape, and are molded entirely by the container in which they are held. It is possible to measure their behavior by measuring properties such as pressure, volume, temperature and number of molecules.
Chemistry - Gases and Their Properties - Revised
  • Duration

    1.5-3 Hours
  • Students

  • Accreditation


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Gas is one of the four fundamental states of matter (solid, liquid, gas and plasma). A pure gas may be composed of individual atoms, elemental molecules made from one type of atom, or compound molecules made from different atoms. A gas mixture, such as the air we breathe, contains different types of pure gases. This course will introduce you to an ideal gas, which is a theoretical gas. You will learn that gas molecules exert no attractive or repulsive forces on each other which make their collisions elastic.

Gases behave differently under pressure. This course will teach you how to calculate the pressure of a gas-filled container. You will study the Ideal Gas Law with the famous equation PV=nRT, its characteristics, and how to solve for any part of this general gas equation. This course will also teach you how changes to pressure, temperature, or volume affect each other. Plus, you will study the core units of measure for temperature.

Studying the concept behind an ideal gas equation, PV=nRT, can help you describe the relationship between pressure, volume, amount, and temperature of a gas. Because they are a simplified model of real gas, they can help explain the basics of the kinetic molecular theory which states that an increase in temperature raises the average kinetic energy of the molecules. So, check out this course and learn more about the behavior of gases, today.

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