Donkey Kong Country Returns. Donkey Kong Country Returns is a 2010 side-scrolling platformer video game developed by Retro Studios and published by Nintendo for the Wii console. The game was released in North America on November 21, 2010, in Australia on December 2, 2010, in Europe on December 3, 2010, and in Japan on December 9, 2010.
A when a volume of gas is opened to another volume with less pressure, the gas can either diffuse or effuse into the container. The main difference between diffusion and effusion is the barrier between the two volumes. Answer: Effusion is when there is a barrier with one or many small holes that prevent the gas to expand into the new volume unless a gas molecule happens to travel through the hole. The term small when referring to the holes are holes with diameters less than the mean free path of the gas molecules.
rate(gas A) Ã âmolar mass(gas A) = rate(gas B) Ã âmolar mass(gas B) For the oxygen gas and chlorine gas we used in the above experiment: This means that the relative rate of diffusion of two gases can be used to determine their relative molecular mass (or molar mass). Effusion is a different concept to diffusion. Effusion refers to gas molecules under pressure escaping through a tiny orifice in the containing vessel. The number of molecules that escape per unit time is equal to the number of molecules that hit the orifice.