SOCIAL SCIENCE AND HUMANITIES
Physical Chemistry For 12th Class
by Aijaz Ahmad Paray
ISBN Number : 978 - 93- 88672 - 02 - 3
Authors Details
Author Name | Image | About Author |
---|---|---|
Aijaz Ahmad Paray | Aijaz Ahmad Paray completed his post graduation from
University of Kashmir (Jammu and Kashmir) in 2003. The
author joined the education department as a teacher and has been
teaching since 2007. The author qualified NET-LS in June 2009
and completed M. Phil in 2015. The author has many
international and national conferences in his credit. |
Book Description
We are surrounded by many objects. Some are big like trees, houses, vehicles etc.; some are small like air molecules, water molecules etc; some are living like plants, animals, birds etc. and some are non-living like rock, chalk, pencil, book etc. All these objects have mass and occupy space. In chemistry, all such objects which have mass and occupy space is called matter. Therefore, matter may be defined as anything which has mass and occupy space. Chalk, duster, books, water etc. all have mass and occupy space, hence are examples of matter. The branch of science, which deals with matter, is called chemistry. Thus, chemistry is branch of science which deals with composition, structure and properties of matter and the changes which the matter undergoes under different conditions. The changes in the matter do not occur randomly but occur under certain laws, these laws are also studied in chemistry.