Asked by trista

is this true or false? i think its false because isnt it spontaneous if its positive

When (triangle i think its called delta) H for a reaction is large and positive, the reaction is not expected to be spontaneous.

Answers

Answered by ladia
change of heat, yeah then it requires heat which means it should be non-spontaneous . ..
Answered by Confused
Delta H is positive, the reaction is endothermic therefore not spontaneous.
Answered by DrBob222
delta G = delta H -TdeltaS.
Generally, but not always, if delta H is negative, then delta G is more likely to be negative, and the reaction will be spontaneous. But delta H can be + and the temperature can be high enough to make the TdeltaS term override the + delta H and delta G can be negative and the reaction spontaneous.
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