Simple past tense and past participle of expend.(verb)
Spent; used up; exhausted.(adjective)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "expended" in a sentence
"Note that labor-power expended is how we get labor."
"A subset of this rhetorical description of time expended is an account of the origins of the interest leading to the invention or discovery."
"With fuel costing above two dollars a gallon perhaps eight or nine gallons of Magna Sin expended while searching for your first campground of the trip would pay for this book and it has maps, and which campgrounds do not allow tent camping (some don't)."