How do we determine whether a the values of w, q, or U are negative or positive?
Re: positive or negative values
Posted: Sat Jan 23, 2016 2:35 pm
by Spencer Johnson 1C
It usually depends on the wording of the question. For example, if heat is absorbed by the system q is positive and the reaction is endothermic but if heat is released then q is negative and the reaction is exothermic.