Home Rate of Effusion Calculator Rate of Effusion Calculator Admin Rate of Effusion Calculator Rate of Effusion Calculator Select Calculation Type: Effusion Diffusion Rate of Effusion of Gas 1 (mol/s): Rate of Effusion of Gas 2 (mol/s): Molar Mass of Gas 1 (g/mol): Molar Mass of Gas 2 (g/mol): Clear Result Rate of Gas 1 or Gas 2: Newer Older