Heating an Ideal Gas: Why Burning Fuel is Equivalent to Reversible Heating

[Katie1990]

Homework Statement

I'm struggling to explain why for an ideal gas at constant pressure heating by burning fuel is equivalent to reversible heating. I know that all forms of work on a ideal gas are eqivalent but don't know why.

Homework Equations

The Attempt at a Solution

 

[Mindscrape]

I wouldn't call the two cases equivalent. In what ways of equivalency do you mean?

 

[Katie1990]

The question asks me to explain why burning a fuel that is clearly not reversible is the same as if heat was supplied reversibly.