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प्रश्न
Give one example of an endothermic reaction.
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उत्तर
When nitrogen and oxygen are heated to a very high temperature (about 3000°C), they combine to form nitrogen monoxide, and a large amount of heat is absorbed in this reaction.
\[\ce{\underset{Nitrogen}{N2_{(g)}} + \underset{Oxygen}{O2_{(g)}} + Heat -> \underset{Nitrogen monoxide}{2NO_{(g)}}}\]
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