The enthalpy change for this reaction is -76 kJ/mol.
The equation is: N2(g) + 2O2(g) -> 2NO2(g) Given enthalpy changes: 2NO(g) + O2(g) + 112 kJ -> 2NO2(g) N2(g) + O2(g) -> 2NO(g) + 180 kJ Using Hess's Law, we subtract the second equation from the sum of the first and third equations: 2NO2(g) - (2NO(g) + O2(g)) = 2NO2(g) - 2NO(g) - O2(g), resulting in the entropy change for the third reaction.
2NO + O2 --> NO2 is not balanced. There are two nitrogen atoms on the left and only one on the right. There are four oxygen atoms on the left and only one on the right. The correct balanced equation is 2NO + O2 --> 2NO2.
All the reactions in a path are added together.
More NO would form
When heat is applied to the reaction 2NO + O2 → 2NO2, the activation energy required for the reaction to take place is provided. This allows the molecules to overcome the energy barrier and react at a faster rate, leading to the formation of nitrogen dioxide (NO2) from nitrogen oxide (NO) and oxygen (O2).
The equation is: N2(g) + 2O2(g) -> 2NO2(g) Given enthalpy changes: 2NO(g) + O2(g) + 112 kJ -> 2NO2(g) N2(g) + O2(g) -> 2NO(g) + 180 kJ Using Hess's Law, we subtract the second equation from the sum of the first and third equations: 2NO2(g) - (2NO(g) + O2(g)) = 2NO2(g) - 2NO(g) - O2(g), resulting in the entropy change for the third reaction.
2NO + O2 --> NO2 is not balanced. There are two nitrogen atoms on the left and only one on the right. There are four oxygen atoms on the left and only one on the right. The correct balanced equation is 2NO + O2 --> 2NO2.
Endothermic
All the reactions in a path are added together.
More NO would form
endothermic
The reaction involving 2NO refers to the formation of nitrogen dioxide (NO2) from nitrogen monoxide (NO). This is typically an oxidation reaction where NO is oxidized in the presence of oxygen (O2). The balanced equation for this reaction is 2NO + O2 → 2NO2. This type of reaction is significant in atmospheric chemistry and contributes to air pollution.
First, capitalization matters in chemistry. The proper formula for nitrogen monoxide (nitric oxide) is NO. No is the symbol for the element nobelium. The balanced equation is 2NO + O2 --> 2NO2
1/2 N2(g) + O2(g) + 33.1 kJ NO2(g)
-144.14 KJ
more N2 and O2 would form
More N2 and O2 would form