- 196 - lO2 I TTrn1TrnrTyr -Trnrrrrr-rT-T12I H H+ 1019 E1 N H M H W rM1017-H H [91017 02 2 Nw 1015 01 0 20,000 40,000 60,000 80,000 100,000 Temperature, OK Figure 39. Hydrogen plasma composition at pressure of 500 atmospheres.