The heat released by decomposing NO(g) from its elements will be the same amount as the heat absorbed when forming it.
When 1 mol of NO(g) forms from its elements, 90.29 kJ of heat is absorbed.
What is ΔH when 3.50 g of NO decomposes to its elements?
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Our data indicates that this problem or a close variation was asked in Chemistry: The Molecular Nature of Matter and Change - Silberberg 8th Edition. You can also practice Chemistry: The Molecular Nature of Matter and Change - Silberberg 8th Edition practice problems.