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Comment on the thermodynamic stability o...

Comment on the thermodynamic stability of NO(g), given
`""^(1//2)N_(2)+""^(1//2)O_(2)(g)toNO(g),Delta_(r)H^("ϴ")=90kjmol^(-1)`
`NO(g)+""^(1//2)O_(2)(g)toNO_(2)(g),Delta_(r)H("ϴ")=-74kj mol^(-1)`

Text Solution

Verified by Experts

For `NO(g),Delta_(r)H^("ϴ")=+ve`, unstable in nature.
For `NO_(2) (g),Delta_(r)H^("ϴ") = -` ve , stable in nature.
Thus, ustable NO(g) changes into the stable `NO_(2)(g)`
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