Thermal Expansion Effect on Density Calculator
What is the Thermal Expansion Effect on Density?
When materials are heated or cooled, their volume changes due to thermal expansion. Since density is mass divided by volume, any change in volume leads to a change in density. This is important in physics, engineering, and material design, especially when precision and temperature sensitivity matter.How to Calculate Final Density After Thermal Expansion
You can use the formula below to calculate the density of a material after it undergoes thermal expansion:- Final Density (ρ) = Initial Density / [1 + 3 × α × ΔT]
- Where:
- ρ is the final density (kg/m³)
- α is the linear thermal expansion coefficient (1/°C)
- ΔT is the temperature change in °C
- The factor of 3 accounts for expansion in three dimensions (length, width, height).
| Material | Initial Density (kg/m³) | α (1/°C) | ΔT (°C) | Final Density (kg/m³) |
|---|---|---|---|---|
| Aluminum | 2700 | 0.000023 | 50 | 2661.25 |
| Water | 997 | 0.000214 | 30 | 938.67 |
| Copper | 8960 | 0.000017 | 100 | 8484.46 |
| Steel | 7850 | 0.000012 | 80 | 7570.79 |