Change Of State
Chapter Name : Thermal Properties Of Matter |
Sub Topic Code : 101_11_11_08_01 |
Topic Name : Change Of State |
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Sub Topic Name : Change Of State |
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Introduction
Four states of matter are observable in everyday life: solid, liquid, gas, and plasma.
Pre-Requisites:
State
Activity:
Ice.
Real Life Question:
What is a solid state of matter?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Solid | As a solid, a substance has a fixed volume and shape and is usually unable to flow, except in the case of glaciers. |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| Water | Water is known to exist in three different states; as a solid, liquid or gas. |
Real life uses :
Condensation.
Places to visit :
Kitchen.
Practical examples around us
| Examples | Explainations |
|---|---|
| Ice | Ice is water frozen into a solid state. It can appear transparent or opaque bluish-white color, depending on the presence of impurities or air inclusions. |
What you learn in Theory:
A phase transition of a given medium certain properties of the medium change, often discontinuously, as a result of some external condition, such as temperature, pressure, and others.
What you learn in Practice:
In any system containing liquid and gaseous phases, there exists a special combination of pressure and temperature, known as the critical point, at which the transition between liquid and gas becomes a second-order transition.