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);
Intramuscular (IM) injections deposit medication deeply into vascular muscle tissue, thus allowing rapid absorption. The deltoid, vastus lateralis, and ventrogluteal muscles are acceptable sites for IM injections.or preschoolers and older children, use a â-inch needle for giving an IM injection in the deltoid. For the vastus lateralis muscle in an average adult or adolescent, give up to 3 mL of medication with a 18- to 25- gauge, 1- to 1Â½-inch needle for oil based or viscous solutions.