The decomposition of n i 3 to form n 2 and i 2 releases − 290.0 kj of energy. the reaction can be represented as 2n i 3 (s)→ n 2 (g)+3 i 2 (g), δh rxn =−290.0 kj find the change in enthaply when 10.0 g of n i 3 decomposes. express your answer to three significant figures and include the appropriate units.
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Ответ:
The change in enthaply when 10.0 g of nitrogen triiodide decomposes is -3.67 kJ.
Explanation:
Enthalpy of the reaction when 2 moles of nitrogen triiodide decomposed =![\Delta H_{rxn}](/tpl/images/0383/4688/aaf02.png)
Enthalpy of the reaction when 1 moles of nitrogen triiodide decomposed :
Mass of nitrogen triiodide decomposed = 10.0 g
Moles of nitrogen triiodide =![\frac{10.0 g}{395 g/mol}=0.02532 mol](/tpl/images/0383/4688/e2eb3.png)
Change in enthaply when 0.02532 moles of nitrogen triiodide decomposed:
Ответ:
Explanation:
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