Linear Expansion Length Change
delta_L = alpha_l·L·ΔT
What it says
How much a solid lengthens when heated — why bridges need expansion joints.
Symbols
| Symbol | Quantity | Dimension |
|---|---|---|
delta_L | Length change (m) | L |
alpha_l | Linear expansion coefficient (1/K) | Θ^-1 |
L | Original length (m) | L |
ΔT | Temperature change (K) | Θ |
Work it out
Enter what you know. No account needed.
Fill in all but one: alpha_l, L, ΔT, delta_L are all empty.
Filed under Thermodynamics · derive through it in the explorer