Problem with Thermal expansion: volume

[mimi83]

Homework Statement

The temperature of a block of lead is raised from 0°C to 100°C. What is the percentage change in its density? (The density of lead at 0°C is 11,300 kg/m3.)

Homework Equations

ΔV = Vi βΔT

The Attempt at a Solution

it gave the wrong answer when i tried to use the above equation

 

[LowlyPion]

What did you use for β?

Is that a given in the problem?

I'm used to seeing β used for compressibility.

If you are using α the thermal expansion coefficient, you may need to account for expansion in 3-D, which corrects the linear α to volume α with the factor 3.

α_v ≅ 3*α_L

http://hyperphysics.phy-astr.gsu.edu/hbase/thermo/thexp2.html#c3