## Introduction

The Combined Gas Law Chart Worksheet Answer Key is a tool used by students and teachers to understand the relationships between pressure, volume, and temperature of gases. It is an essential tool for those studying chemistry or physics, and it helps them to solve complex problems related to gas laws.

## What is the Combined Gas Law?

The Combined Gas Law is a gas law that combines three other gas laws: Boyle's Law, Charles's Law, and Gay-Lussac's Law. It states that the pressure, volume, and temperature of a gas are all related and can be expressed mathematically through a single equation.

### Boyle's Law

Boyle's Law states that at constant temperature, the volume of a gas is inversely proportional to its pressure. This means that as the pressure of a gas increases, its volume decreases, and vice versa.

### Charles's Law

Charles's Law states that at constant pressure, the volume of a gas is directly proportional to its temperature. This means that as the temperature of a gas increases, its volume also increases, and vice versa.

### Gay-Lussac's Law

Gay-Lussac's Law states that at constant volume, the pressure of a gas is directly proportional to its temperature. This means that as the temperature of a gas increases, its pressure also increases, and vice versa.

## How to Use the Combined Gas Law Chart Worksheet Answer Key

To use the Combined Gas Law Chart Worksheet Answer Key, you first need to understand the equation that represents the Combined Gas Law. The equation is as follows: (P1 x V1) / T1 = (P2 x V2) / T2 Where P1, V1, and T1 represent the initial pressure, volume, and temperature of the gas, and P2, V2, and T2 represent the final pressure, volume, and temperature of the gas.

### Step-by-Step Procedure

1. Identify the variables given in the problem. 2. Determine which variables are constant and which variables are changing. 3. Write down the initial and final values of the variables. 4. Plug in the values into the equation. 5. Solve for the unknown variable.

## Example Problem

A gas occupies a volume of 2.0 L at a pressure of 1.0 atm and a temperature of 273 K. If the pressure is increased to 2.0 atm and the temperature is increased to 300 K, what is the new volume? 1. P1 = 1.0 atm, V1 = 2.0 L, T1 = 273 K 2. P2 = 2.0 atm, V2 = ?, T2 = 300 K 3. Plug in the values: (1.0 atm x 2.0 L) / 273 K = (2.0 atm x V2) / 300 K 4. Rearrange the equation to solve for V2: V2 = (1.0 atm x 2.0 L x 300 K) / (2.0 atm x 273 K) 5. Solve for V2: V2 = 1.10 L

## Conclusion

The Combined Gas Law Chart Worksheet Answer Key is an essential tool for understanding the relationships between pressure, volume, and temperature of gases. By using the equation and following the step-by-step procedure, students can solve complex problems related to gas laws. With this knowledge, they will be able to excel in their studies of chemistry or physics and apply it to real-world applications.

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