Using principles of phase rule of degree of freedom for the following systems:
(1) Nacl(s) in equilibrium withits saturated solution at 25°C and 1atm pressure
(2)HCl(s) and NH3(g) in equilibrium with NH4Cl(s) when equilibrium is attained by starting with the two gases only
(3) I2(s) in equilibrium with its vapour at 50°C<!--/data/user/0/com.samsung.android.app.notes/files/clipdata/clipdata_230130_200058_364.sdoc-->
