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For each process below, determine the change in entropy of the system. Indicate whether the changes...

For each process below, determine the change in entropy of the system. Indicate whether the changes in the entropy of the surroundings and of the universe will be negative or positive (5 pts each).

(a)    One mole of ammonia gas decomposes to nitrogen and hydrogen gases.

(b)    12 g of liquid water freezes.

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