I'm making a character in my friends homebrew d&d. I have a spell that summons 1lb of a simple, non-magical, and non-manufactured material instantly in my hand. I realized 1lb of hydrogen is roughly 6.4 liters for 1 lb. The average human mouth has roughly 72.1ml internal volume. What would be the psi that force would exert if instantly compressed into a mouth. My character is planning on being a grappling wizard so I want a ballpark on just how fucked my victims will be. Because im assiming the damage calculation will be repated to the psi agaibst the internal resistance of a human mouth. I can't find anything on Google to help me.