Ideal gas law
Relation among the pressure, volume, temperature and amount of substance of an ideal gas. A good approximation for real gases at low pressure and high temperature.
別名: ideal gas law, PV=nRT, りそうきたい
数式
P V = n R T
変数
| P | pressure (Pa) |
|---|---|
| V | volume (m³) |
| n | amount of substance (mol) |
| R | gas constant (8.314 J/(mol·K)) (J/(mol·K)) |
| T | absolute temperature (K) |
計算例
T = 300 K、n = 1 mol、V = 24.6 L の理想気体の圧力を求めよ。
P = \dfrac{n R T}{V} = \dfrac{1 \times 8.314 \times 300}{0.0246}
P \approx 1.014 \times 10^{5}\,\mathrm{Pa}