Скачать или смотреть | Applied Chemistry 1st (Lecture - 01) | Some Basic Concept Explained | Uttarakhand Polytechnic

Welcome to Civil Pathshala, your one-stop destination for polytechnic courses and engineering studies! In this video, we're introducing Applied Chemistry 1st semester, a crucial subject for 1st sem civil students pursuing polytechnic education in Uttarakhand.


Video Timestamps
0:00 Introduction and welcome.

0:12 Overview of the syllabus for the first chapter.

0:33 Definition and explanation of Chemistry.

2:03 The importance of chemistry in various fields.

2:27 How chemistry serves as a foundational science.

3:26 Applications of chemistry in daily life.

4:28 Role of chemistry in health and medicine.

5:22 Chemistry's impact on agriculture, including fertilizers and pesticides.

6:03 Use of chemistry in industry and technology.

6:39 Chemistry's role in environmental protection and waste management.

7:18 Connection between chemistry and energy production.

8:00 Introduction to the concept of Matter.

10:05 The three physical states of matter: solid, liquid, and gas.

10:33 Characteristics of solids, liquids, and gases.

13:14 Classification of matter into mixtures and pure substances

16:20 Explanation of pure substances.

17:42 Definition of elements.

18:22 Definition and examples of compounds.

19:40 Explanation of molecules.

20:55 Discussion of ions, including cations and anions.

24:00 The use of symbols to represent elements.

24:56 Explanation of chemical formulas.

25:52 Definition and concept of valency.

27:44 How to write and understand chemical equations.

28:43 The mole concept and Avogadro's number.

30:16 Definition and formula for Molarity.

32:20 Definition and formula for Molality, and its distinction from Molarity.

34:14 Introduction to subatomic particles.

34:56 Properties and role of the Electron.

35:56 Properties and role of the Proton.

36:31 Properties and role of the Neutron.

37:41 Explanation for not covering syllabus sections 1.3 and 1.4.

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