Delta H (f) ^(0) values of NH (2) - OH ...

`Delta H _(f) ^(0) ` values of `NH _(2) - OH _((s)), NH _(3 (g)), N _(2) H _(4 (l)) and NH _(4) NO _(3 (s))` are respectively (in kJ `mol^(-1)`) -114, 294, 50.6 and -365.5. The order of increasing stability with respect to decomposition into their elements is.

`NH _(4) NO _(3(s)) lt NH _(2) - OH _((s)) lt N _(2) H_(4(l)) lt NH _(3 (g))`

`NH _(3 (g)) lt N _(2) H _(4 (l)) lt NH _(2) OH _((s)) lt NH _(4) NO _(3 (s))`

`NH _(3 (g)) lt N _(2) H _(4 (l)) lt NH _(2) OH _((s)) lt NH_(4) NO _(3 (s))`

`NH _(3 (g)) lt NH _(2) - OH _((s)) lt N _(2) H _(4 (l)) lt NH _(4) NO_(3 (s))`

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