When Ignited,solid Ammonium Dichromate Decomposes in a Fiery Display $\Delta$ S_univ° (In KJ/mol K)

question 116

Multiple Choice

When ignited,solid ammonium dichromate decomposes in a fiery display.This is the reaction for a "volcano" demonstration.The decomposition produces nitrogen gas,water vapor,and chromium(III) oxide.The temperature is constant at 25°C.

-Determine $\Delta$ S_univ° (in kJ/mol K) .

• A)7.66
• B)6.39
• C)84.3
• D)5.22
• E)6.03

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