2. Boyles law V= 100 V÷15 P=30

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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Boyles law 

**Boyle's Law**

Boyle's Law states that for a given mass of gas at constant temperature, the volume of the gas varies inversely with pressure.

Here are some data points relevant to Boyle's Law:

- **V = 100**
- **V = 75**
- **P = 30**

In Boyle's Law, if the volume of a gas decreases, the pressure increases, provided the temperature remains constant. The relationship can be expressed mathematically as:
\[ P1 \times V1 = P2 \times V2 \]
where:
- \( P1 \) and \( P2 \) are the initial and final pressures,
- \( V1 \) and \( V2 \) are the initial and final volumes.

If we were to plot this relationship on a graph:
- The x-axis could represent the volume (V) of the gas,
- The y-axis could represent the pressure (P) of the gas.

The graph would show a curve that slopes downward from left to right, illustrating the inverse relationship between pressure and volume.

### Example Calculation

Given:
- Initial volume \( V1 = 100 \)
- Volume \( V2 = 75 \)
- Pressure \( P2 = 30 \)

We can use the formula to determine the initial pressure \( P1 \).

\[ P1 \times 100 = 30 \times 75 \]
\[ P1 \times 100 = 2250 \]
\[ P1 = \frac{2250}{100} \]
\[ P1 = 22.5 \]

So the initial pressure \( P1 \) is 22.5.

### Application

Understanding Boyle's Law is crucial in fields like chemistry and physics, especially when dealing with gases and their reactions under varying pressures and volumes.

**Graph Explanation:**

- No specific graph is provided in the image, but typical Boyle's Law graphs depict an inversely proportional relationship between pressure (y-axis) and volume (x-axis). As volume decreases, pressure increases, forming a hyperbolic curve.

This topic can be elaborated on with specific examples, graphical representations, and derivations to help students grasp the core principles effectively.
Transcribed Image Text:**Boyle's Law** Boyle's Law states that for a given mass of gas at constant temperature, the volume of the gas varies inversely with pressure. Here are some data points relevant to Boyle's Law: - **V = 100** - **V = 75** - **P = 30** In Boyle's Law, if the volume of a gas decreases, the pressure increases, provided the temperature remains constant. The relationship can be expressed mathematically as: \[ P1 \times V1 = P2 \times V2 \] where: - \( P1 \) and \( P2 \) are the initial and final pressures, - \( V1 \) and \( V2 \) are the initial and final volumes. If we were to plot this relationship on a graph: - The x-axis could represent the volume (V) of the gas, - The y-axis could represent the pressure (P) of the gas. The graph would show a curve that slopes downward from left to right, illustrating the inverse relationship between pressure and volume. ### Example Calculation Given: - Initial volume \( V1 = 100 \) - Volume \( V2 = 75 \) - Pressure \( P2 = 30 \) We can use the formula to determine the initial pressure \( P1 \). \[ P1 \times 100 = 30 \times 75 \] \[ P1 \times 100 = 2250 \] \[ P1 = \frac{2250}{100} \] \[ P1 = 22.5 \] So the initial pressure \( P1 \) is 22.5. ### Application Understanding Boyle's Law is crucial in fields like chemistry and physics, especially when dealing with gases and their reactions under varying pressures and volumes. **Graph Explanation:** - No specific graph is provided in the image, but typical Boyle's Law graphs depict an inversely proportional relationship between pressure (y-axis) and volume (x-axis). As volume decreases, pressure increases, forming a hyperbolic curve. This topic can be elaborated on with specific examples, graphical representations, and derivations to help students grasp the core principles effectively.
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