Chemistry, 15.04.2020 04:19 kevinbazalar
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.
Substance H0f (kJ/mol) S0 (kJ/mol . K)
a. Cr2O3 (g) -1140 0.0812
b. H2O (I) -242 0.1187
c. N2 (g) 0 0.1915
d. (NH4)2 Cr2O7 - 22.5 0.1137
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When ignited, solid ammonium dichromate decomposes in a fiery display. This is the reaction for a "v...
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