It's one of the givens of kinetic molecular theory. It explains why hydrogen gas diffuses faster than carbon dioxide. Thus there is a greater probability that a lighter molecule like hydrogen will be able to cross a given transient empty space faster than a heavier one before the gap, so to speak, closes up.
(<60 kg) for IM injection in the deltoid muscle only if the subcutane-. ous tissue is not bunched and the injection is made at a 90Â° angle; a 1 needle is sufficient in adults weighing 130â152 lbs (60â70 kg);
injection technique [4]. that the injection would be into the muscle massâ (p. 1710) [5]. tissue, instead of into the muscle, results in more serious local reactions and compromised immunogenicity [6-10]. injury to the axillary nerve following deltoid IM injection has been reported in the literature [11, 12].