Phosphorus exists as several allotropes that have varyingproperties. The enthalpy of transition from white P to red P,ΔtransH, is -18 kJ/mol. The densities of white and red phosphorusare 1.823 and 2.270 g/cm3, respectively. At what temperature doeswhite phosphorus become the stable phase at 625 atm of pressure?Assume the formula for phosphorus is P4.
