Consider the thermodynamic data below: Compound ΔH∘f(kJ/mol) C3H8(g) − 103.85 O2(g) 0 CO2(g) − 393.5 CO(g) − 110.5 H2O(l) − 285.83 H2O(g) − 241.82 Part A Calculate the minimum number of grams of propane, C3H8(g) , that must be combusted under standard conditions to provide the energy necessary to convert 6.00 kg of ice at -24.0 ∘C to liquid water at 78.5 ∘C . The specific heats of ice and liquid water are 2.03 and 4.18 J/(g⋅K) , respectively. The enthaplies of fusion and vaporization for H2O are 6.01 and 40.7 kJ/mol .