Is N2 O2 2NO exothermic or endothermic?
The triple bond between two N atoms in N2 is very strong due to small size and thus has a high dissociation energy. Due to this a large amount of energy is required to break this bond and thus the oxidation of N is endothermic.
How do you explain why a reaction is exothermic?
Chemical reactions that release energy are called exothermic. In exothermic reactions, more energy is released when the bonds are formed in the products than is used to break the bonds in the reactants. Exothermic reactions are accompanied by an increase in temperature of the reaction mixture.
Is N2 O2 2NO an oxidation reaction?
N2 is oxidizing with rise in oxidation state. O2 is reducing with decrease in oxidation state. Overall, N2 is reducing agent. O2 is oxidizing agent.
What does N2 and O2 make?
Balancing Strategies: In this combination (also called synthesis) reaction N2 is combining with O2 to form NO2.
What happens when N2 reacts with O2?
N2(g) and gaseous oxygen O2(g) to form gaseous nitric oxide NO(g). This reaction is carried out at high temperature. Such reactions in which heat is absorbed by the system are called endothermic reactions.
What is the enthalpy of N2 O2 2NO?
2NO ==> N2 + O2 and the ∆H = -180.7 kJ.
Is the separation of N2 and O2 endothermic or exothermic?
I think it is an exothermic reaction. Form 2NO and this is endothermic reaction and absorb 180.8 kj of energy. So the above reaction is the reverse of below reaction so it os exothermic reaction and release equal amount of energy to seprate N2 and O2
Is the formation of nitric oxide an exothermic or endothermic reaction?
It is not an exothermic reaction. The standard enthalpy of formation of nitric oxide (NO) in the gas phase is about +90 kJ/mol, which is endothermic.
What is an exothermic reaction?
An exothermic reaction is a chemical reaction that releases energy by light or heat. It is the opposite of an endothermic reaction. An exothermic reaction is a chemical or physical reaction that releases heat. It gives net energy to its surroundings. That is, the energy needed to initiate the reaction is less than the energy released.
What is the enthalpy of reaction between n2 and O2?
For every mole of reaction you use up one mole of N 2, one mole of O 2 and you produce two moles of N O. Also, for every mole of reaction you need to supply 480kJ of energy. so the enthalpy change for the reaction as you wrote is is Δ r H = + 480 k J / m o l.