Calculadora da Lei dos Gases Ideais
Calcule pressão, volume, temperatura ou mols usando a equação PV = nRT dos gases ideais.
Pressão (P)
1.0000 atm
Pressure (P) vs Amount of Gas (n)
Formula
## Ideal Gas Law ### Formula **PV = nRT** Solving for P: **P = nRT / V** Where: - **P** = pressure (atm) - **V** = volume (L) - **n** = moles of gas - **R** = gas constant = 0.08206 L·atm/(mol·K) - **T** = temperature (K) The ideal gas law assumes no intermolecular forces and negligible molecular volume.
Exemplo Resolvido
1 mole of gas at 273.15 K (0°C) in 22.414 L.
- 01P = nRT / V
- 02P = (1)(0.08206)(273.15) / 22.414
- 03P = 22.414 / 22.414
- 04P = 1.000 atm
Perguntas Frequentes
When does the ideal gas law apply?
It works well at low pressures and high temperatures where gas molecules are far apart. It becomes inaccurate near condensation or at very high pressures.
What value of R should I use?
R = 0.08206 L·atm/(mol·K) for pressure in atm and volume in liters. R = 8.314 J/(mol·K) for SI units.
How do I convert Celsius to Kelvin?
Add 273.15. For example, 25°C = 298.15 K. Temperature in the ideal gas law must be in Kelvin.
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