🌐EnglishEnglishDeutschEspañolFrançaisItalianoNederlandsPolskiPortuguêsSvenskaTiếng ViệtРусскийالعربيةفارسیहिन्दी한국어中文日本語EntityQ756307· pop 32· linked from 219 articlesmean free pathAlso known as MFPaverage distance travelled by a moving particle between successive impactsAvailable in 31 languagesEspañolFrançaisDeutsch中文日本語РусскийPortuguêsItalianoالعربيةहिन्दीConnectionsmoleculeEntitygamma rayEntityCategoriesScattering, absorption and radiative transfer (optics)Statistical mechanics