The value of Δ
fG at 100.0 °C for the formation of calcium chloride from its constituent elements,
Ca(s) + Cl
2(g) → CaCl
2(s)
is ________ kJ mol
-1. At 25.0 °C for this reaction, Δ
fH° is -795.8 kJ mol
-1l, Δ
fG° is -748.1 kJ mol
-1, and

is

◦ -855.4
◦ -736.2
◦ 5.88 × 10
4◦ -779.8
◦ 1.52 × 10
4