Is run-off exothermic or endothermic

Answer 1

yes, as are all mammals. The definition of endothermic is: "... a process or reaction that absorbs energy in the form of heat." (From Wikipedia) So humans can be endothermic if their bodies are absorbing energy from their surroundings. For the most part, humans are exothermic, meaning they release heat energy to their surroundings. Too much time being endothermic and hyperthermia sets in. Our bodies generally need to get rid of excess heat energy. So even if we are in 100 (F) temperature, our bodies still must rid themselves of excess heat. We do so with the aid of evaporating sweat. (And air conditioning, which happens to absorb energy through the evaporation of refrigerant) I wonder if the OP (and the first responder) were using endothermic to represent warm-blooded.

Answer 2

I would venture to guess that run-off is exothermic as it pertains to water's(for example) high heat of vaporization. Much like sweating to cool the body, water has an incredible ability to absorb heat from any surface.

Answer 3

Exothermic - of course, because the muscular effort involve a combustion (oxydation).

Answer 4

humans are exothermic!

Answer 5

Poeple are Endothermic