Acetylene + hydrogen = energy + 2CH4?

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nexium

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This is suggested in the Space.com article about possible life on Titan, the big moon of Saturn. Aceteylene C2H2 has half as much hydrogen as the valance of 4 of cabon suggests. Is the process reversable to renew the acetylene? How else can acetylene be made besides water and calcium carbide? Neil
 
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newtonian

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Neil - Can you post tbe chemical symbol for calcium carbide?<br /><br />Methane, CH4, has 4 times as much hydrogen per carbon as C2H2 - I assume you realized that!<br /><br />CH4 is, if I remember correctly, broken down by photlysis (photodissociation). If carbon is abundant in the environment, it would allow recombining as C2H2.<br /><br />Sorry, I'm rusty on this. <br /><br />Can you link the article?<br /><br />What is the overall composition of Titan?
 
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