2011-07-10, 11:37 PM
Put it this way.
The reaction is exothermic if the heat of formation is negative. This means hydrogen and oxygen combining should release energy.
But you really don't see water spontaneously forming in midair, don't you?
The reaction is exothermic if the heat of formation is negative. This means hydrogen and oxygen combining should release energy.
But you really don't see water spontaneously forming in midair, don't you?