Re: salt water instead of gas?
There is a way to calculate the efficiency of the energy transfers. I think physicists, chemical engineers, and good chemists can calculate the theoretical efficiency using some equations that uses terms like entropy, Gibbs energy and other techno jargon from what I vaguely remember.
I'm pretty sure that the energy put into making that match head is more than the energy generated by the matchhead; not including the items burned by the matchhead.
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