Critical densities in the LH formation rate of H2 for amorphous carbon and a mean distance between physisorbed sites of 2.6 Å , where T is the gas temperature in K.
|a = 10-6 cm||a = 10-5 cm||a = 10-6 cm||a = 10-5 cm||a = 10-6 cm||a = 10-5 cm|
|[H] a cm-3|
|[H] b cm-3|
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