chapter 16 extra Flashcards
how does the heat content of the products of a reaction system compare with the heat content of the reactants when the reaction is endothermic, exothermic
endo-positive
exo-negative
the entropy ____ when a liquid changes to a solid
decreases
the entropy ____ when a solid changes to a liquid
increases
the entropy ____ when a liquid changes to a gas
increase
1 calorie = how many joules
4.184 Joules
which term refers to disorder in a system
entropy
entropy increases as
the temperature of the system increases
compared with a single gas, a mixture of gases is more
random
a spontaneous reaction occurs only when
the change in Gibbs free energy is negative
a reaction cannot be spontaneous if
H is positive and S is negative
if the free energy change of a reaction is positive at a specific temperature, the reaction
is not spontaneous
equation for free energy change
g=h-t(s)
