Register to reply

Proving coefficient of volume expansion

by bray d
Tags: coefficient, expansion, proving, volume
Share this thread:
bray d
Feb17-08, 05:43 PM
P: 11
1. The problem statement, all variables and given/known data
Prove the equation B=3A, where B is the coefficient of volume expansion and A is the coefficient of linear expansion, considering a cube of side 's' and therefore volume V=s^3 that undergoes a small temperature change 'dT' and corresponding length and volume changes 'ds' and 'dV'.

2. Relevant equations

3. The attempt at a solution
I think I need to prove the coefficient of linear expansion, then prove the coefficient of volume expansion and observe the relationship between the two. I don't know where to start though, or if there is a more straight forward way. any help is appreciated, thanks
Phys.Org News Partner Science news on
Hoverbike drone project for air transport takes off
Earlier Stone Age artifacts found in Northern Cape of South Africa
Study reveals new characteristics of complex oxide surfaces
bray d
Feb17-08, 11:06 PM
P: 11
I was thinking of using the ideal gas law:

but ITS NOT A GAS. I'm lost
Feb17-08, 11:13 PM
Saladsamurai's Avatar
P: 3,015
Are you sure that you don't just need to show that if the coefficient of linear expansion is A then the coefficient of volume of expansion is just 3A?

I feel that this is more likely the question being asked.

Register to reply

Related Discussions
Volumetric thermal expansion coefficient Advanced Physics Homework 2
Proving a volume of a cylinder Precalculus Mathematics Homework 7
Coefficient of expansion Introductory Physics Homework 3
Volume expansion problem...wheres initial volume? Introductory Physics Homework 2
How to derive the coefficient of thermal expansion? Introductory Physics Homework 2