Kinetic Molecular Theory Worksheet illustrating the three common phases of matter with particle diagrams and related questions.

Kinetic Molecular Theory Worksheet Solution

#### Instructions Recap:
The worksheet asks you to use the provided terms to fill in the blanks. Some terms may be used more than once. The goal is to understand the kinetic molecular theory and its application to different phases of matter (solid, liquid, gas).

---

Part 1: Phases of Matter

The boxes represent matter in three common phases. Match the phase with the appropriate letter:

- A: SOLID
- B: LIQUID
- C: GAS

Explanation:
- Solid (A): Particles are closely packed in a fixed, ordered structure.
- Liquid (B): Particles are close together but can move past each other.
- Gas (C): Particles are far apart and move freely.

---

Part 2: Fill in the Blanks

#### Question 1:
"The word kinetic comes from a Greek word that means 'to move.' The kinetic molecular theory is based upon the assumption that atoms are in constant _______."

- Answer: Random Motion

Explanation: The kinetic molecular theory assumes that particles are always in motion, exhibiting random motion.

---

#### Question 2:
"State the names of the phases in order of Temperature, Kinetic Energy, density and bond strength between atoms."

| Lowest Temperatures | In between Temperatures | Highest Temperatures |
|---------------------|--------------------------|-----------------------|
| Solid | Liquid | Gas |
| Lowest Kinetic Energy | In between Kinetic Energy | Highest Kinetic Energy |
| Solid | Liquid | Gas |
| Lowest Density | In between Density | Highest Density |
| Gas | Liquid | Solid |
| High Strength Bonds | Weak Bonds | No Bonds |
| Solid | Liquid | Gas |

Explanation:
- Temperature: Solids have the lowest temperature, liquids are intermediate, and gases have the highest temperature.
- Kinetic Energy: Corresponds directly to temperature.
- Density: Gases have the lowest density, liquids are intermediate, and solids have the highest density.
- Bond Strength: Solids have strong bonds, liquids have weaker bonds, and gases have no bonds.

---

#### Question 3:
"Kinetic Energy is directly related to temperature. As the temperature increases so does the _______."

- Answer: Kinetic Energy

Explanation: Kinetic energy is proportional to temperature. As temperature increases, the average kinetic energy of particles also increases.

---

#### Question 4:
"Compared to Solids and Liquids, gases tend to have a lower _______. This can be explained by the fact that there is so much _______ between particles in a gas."

- Answer: Density, Empty Space

Explanation: Gases have low density because their particles are far apart, resulting in a lot of empty space between them.

---

#### Question 5:
"A small pressure will easily _______ a gas. If this happens its _______ will increase. The space between the atoms will (INCREASE or DECREASE)."

- Answer: Compress, density, DECREASE

Explanation: Gases are compressible because their particles are far apart. When compressed, the volume decreases, increasing density, and reducing the space between particles.

---

#### Question 6:
"Even a large pressure will not _______ a solid because the atoms are so closely packed."

- Answer: Compress

Explanation: Solids are incompressible because their particles are already tightly packed, leaving little room for compression.

---

#### Question 7:
"Solids have strong _______, liquids have weaker _______ and gases have no _______ holding them together."

- Answer: Bonds, Bonds, Bonds

Explanation: Solids have strong intermolecular bonds, liquids have weaker bonds, and gases have no bonds due to the large distances between particles.

---

#### Question 8:
"A solid like ice or diamond has a highly ordered arrangement of bonds between atoms which is called its _______. A liquid or gas does not have this."

- Answer: Structure

Explanation: Solids have a well-defined structure due to the ordered arrangement of their particles, whereas liquids and gases lack such a rigid structure.

---

Final Answer:

\boxed{
\text{See detailed explanations above.}
}