If gasoline turns from liquid to a high pressure gas

  • Thread starter Qaiphyx
  • Start date
  • #1
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Main Question or Discussion Point

in internal combustion engines, how do they run hydrogen in these engines like the BMW hydrogen car when hydrogen combusts in to H2O?
 

Answers and Replies

  • #2
757
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Its not about the phase transition but the chemical reaction that makes it work.
 
  • #3
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Combustion heat makes the gas which is introduced into the engine expansion. At that moment the engine generates work. Q=m Cp del T + del (PV). And del (PV) makes work. Ideal work is like this.
W= Int (V_int to V_final) P dV
 
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