Dissociation of sodium azide is given below:
`NaN_(3)toNa+3//2N_(2),`
`DeltaH` for this is:

Automobile air bags are inflated with N_(2) gas which is formed by the decomposition of solid sodium azide ( NaN_(3)) . The other product is Na-metal.Calculate the volume of N_(2) gas at 27^(@)C and 756 Torr formed by the decomposition of 125 gm of solid azide.

For N_(2)+3H_(2)hArr2NH_(3),DeltaH= -ve then :-

For the reaction N_(2)+3H_(2)iff2NH_(3),DeltaH is

For the reaction N_(2)+3H_(2)hArr2NH_(3) , DeltaH=?

Silanes are silicon hydrides of general formula Si_(n)Hn_(2n+2) and have several applications. From the data given below, the bond dissociation enthalpy of Si-Si bond ("in kJ mol"^(-1)) is Given: DeltaH of the reaction 2Si(s)+3H_(2)(g)rarrSi_(2)H_(6)(g)" is "80.3 kJ mol"^(-1) Bond dissociation enthalpy for H-H=436" kJ mol"^(-1) Bond dissociation enthalpy for Si-H=304" kJ mol"^(-1) Delta_(f)H[Si(g)]="450 kJ mol"^(-1)

Silanes are silicon hydrides of general formula Si_(n)Hn_(2n+2) and have several applications. From the data given below, the bond dissociation enthalpy of Si-Si bond ("in kJ mol"^(-1)) is Given: DeltaH of the reaction 2Si(s)+3H_(2)(g)rarrSi_(2)H_(6)(g)" is "80.3 kJ mol"^(-1) Bond dissociation enthalpy for H-H=436" kJ mol"^(-1) Bond dissociation enthalpy for Si-H=304" kJ mol"^(-1) Delta_(f)H[Si(g)]="450 kJ mol"^(-1)