CHEMISTRY-XI BIEK ACCORDING TO NEW BOOK CHAPTER NO # 4 (STATES OF MATTER – I (GAS))|Dr. Atta Ur Rehman |XI Chemistry |BIEK|IDEAL COLLEGIATE

PREPARED BY: DR. ATTA UR REHMAN (Ph.D. CHEMISTRY)

CHAPTER NO # 4 (STATES OF MATTER – I (GAS))

The Textbook of CHEMISTRY-XI BIEK For Class XI – Class 11 – Sindh Textbook Board

INTRODUCTION

States of matter refer to the different physical forms in that matter can exist in. These include solid, liquid, and gas. In this introduction, we will focus on the properties and uses of gases.

Gas is a state of matter that has no fixed shape or volume. Instead, it will expand to fill any container it is placed in. Gases are made up of atoms or molecules that are constantly moving and colliding with each other. They can be compressed into smaller volumes and can also be expanded to fill larger spaces.

APPLICATION AND USES

Gases have a wide range of uses and applications in our everyday lives. One of the most common uses of gases is as a fuel. Natural gas, for example, is used to heat homes, generate electricity, and power vehicles. Gases like hydrogen and helium are also used in various industrial processes and as a coolant in nuclear reactors.

In addition to their use as a fuel, gases have many other applications in science and industry. For instance, they are used in the production of chemicals, in the manufacturing of electronics, and as a refrigerant in air conditioning and refrigeration systems. In medicine, gases like oxygen and nitrogen are used in respiratory therapy and in the preservation of medical samples.

Understanding the properties and applications of gases is crucial in many fields, from chemistry to engineering. By studying gases, scientists and engineers can develop new technologies and products that make our lives better and more comfortable.

LECTURE SLIDES CHAPTER NO # 4 (STATES OF MATTER – I (GAS))

NOTES CHAPTER NO # 4 (STATES OF MATTER – I (GAS))