The statement that is a part of Kinetic Molecular Theory (KMT) is Molecules in a gas move rapidly. That is option B.
<h3>What is Kinetic Molecular Theory (KMT)?</h3>
Kinetic Molecular Theory (KMT) is defined as the theory that describes the physical behaviour of gases.
The Kinetic Molecular Theory (KMT) include the following:
- Ideal gas molecules are constantly moving;
- They have negligible volume;
- They have negligible intermolecular forces;
- They undergo perfectly elastic collisions; and
- They have an average kinetic energy proportional to the ideal gas's absolute temperature.
Therefore, the statement that is a part of Kinetic Molecular Theory (KMT) is Molecules in a gas move rapidly.
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A compound is a substance composed of 2 or more chemical elements.
The model does not represent a compound because it shows two atoms of the same element combined. To be a compound the model would need to contain atoms of different element, represented by different colored balls. Therefore, the picture does not represent a compound. :)
Answer:
The new volume of the gas is 21 L.
Explanation:
Volume of a gas is inversely proportional to its pressure at constant temperature such that,

or

We have,

It is required to find V₂. Using above law or Boyle's law such that :

So, the new volume of the gas is 21 L.
You can easily find hundreds on the internet.