Question

What is cryogenic hydrogen?

Answer 1

cryogenic hydrogen means that the substance is extremely cold and it's particles are moving very slowly. If the cryogenic hydrogen touched the room object it would remove the heat because the heat would flow into the liquid and it would boil



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Answer 2

$here \: is \: yur \: answer \:$
cryogenic hydrogen means the substance is extremely cold and it's particles are moving very slowly . if the cryogenic hydrogen touches the room temperature object then it would remove the heat