Support the Monkey! Tell All your Friends and Teachers

Help / FAQ


CHAPTER 12 : THERMAL EXPANSIONS OF SOLIDS, LIQUIDS AND GASES

It is known from experience that matter in all three states solids, liquids and gases expands when heated. The characteristics of expansion are considered in details as follows.

12.1 Solids

Solids are available in definite shapes of rods, laminas and blocks. Therefore the following three coefficients can be defined.

Coefficient of Linear Expansion : a

The change in length, per unit original length per 10C change in temperature, is called the coefficient of linear expansion.

Note:   1) Expansions in surface area and volume are               negligible.

  2) a varies slightly over a range of temperatures, but       the variation is negligibly small.


Coefficient of Superficial Expansion : b

The change in surface area per unit original area per 10 C change in temperature is called the coefficient of superficial expansions.

Note: 1) Expansion in volume is negligible.

2) Same comment as for a

3) b @ 2 a

Coefficient of Cubical Expansion

The change in volume per unit original volume per 10C change in temperature is called coefficient of cubical expansion.

Note: 1) Same comment for variation in g as for a & b.

2) g @ 3a.

Index

12.1 Solids
12.2 Liquids
12.3 Gases
12.4 Gas Laws
12.5 Equation of State :Ideal Gas Equation
12.6 Kinetic Theory of Ideal Gases

Chapter 13





All Contents Copyright © All rights reserved.
Further Distribution Is Strictly Prohibited.


Search:
Keywords:
In Association with Amazon.com