SUPERHEATED STEAM
PREPARATION
I:onm L: ( v i l froni ti f I < I ( i. & I . o.d. ropper Lu11i11g11y bending it around il %in. pip('. One end sho~:lil 171. left a t a right angle, 1.0 the axis of the wil projwtit~g 3 in. The othpr end shc~r~ld he parallel t o thc mil ~ ~ s i s . Insert. t,hr rirht :ingIr m d t,hrough a 2-hi1k ruh111,r stopper into a metal 1 . ~ 1 1 o r 1000-ml Pyrex boiling flask. T h r o ~ ~ gthe h othex hole in the stoppcr, plaw :I 4-ft length nf glzss t,~lbing. .Add 500 ml of w.at,er t ~ t the flask. Adjust the. 4-ft t,l~ht\h~lnlr.the r\-;~t(!rI(!v(,I and provide 2 h u r : ~ t ~ . DEMONSTRATION
Heat, tht. wat,er 11, \wiling so that a xteiid?; flmr 01 steam r.mner; from the end nf the roil, Show t h r ~ lI h i i :
\.itpi~ris I I U ~dry , hy ~wllrrtil~g ~nuistureon a match and tisslw paper. Heat the c ~ ~ p pmil r r strongly and ,shorn l hill the sup~rheatedstr;~nl\rill ignite a matrh and s1.olr41p:zprr. REMARKS
SOURCE
RHINKI:HHOQE.. H . F.,( I H I I ,.I. ~ ~B., . \VATSOK, F. (;., .\\-I> R l t ~ ~ \ . n l \ ~ c 1'.l sF. . "The Physical World." 11:1rw11rt.Rrxw n11i1 C'o., 1958, pp. 1.59-.60.
