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General Chemistry 2 Midterm - Part 3 of 3
SAMPLE

Please be aware that you practice a sample exam set, which means that it’s mimicking a real exam. In order to have more accurate experience:

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19. Chemical Thermodynamics / Entropy Calculations / Problem 16

When heated to 300 °C, sodium azide (NaN3) decomposes to give elemental sodium and nitrogen gas.
2 NaN3(s) → 2 Na(s) + 3 N2(g)Determine if the reaction is spontaneous at 1 atm and 25 °C.

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