Respuesta :
Answers are:
Standard reaction: P₄ + 20HF→ 4PF₅ + 10H₂.
1) chemical reaction: 1/5P₄ + 4HF→ 4/5PF₅ + 2H₂.
ΔG = -311kJ ÷ 5 = -62,2 kJ.
2) chemical reaction: 12PF₅ + 30H₂ → 3P₄ + 60HF.
ΔG = -311kJ · (-3) = 933 kJ.
3) chemical reaction: 4PF₅ + 10H₂ → P₄ + 20HF.
ΔG = -311kJ · (-1) = 311 kJ, reversed standard reaction.
Standard reaction: P₄ + 20HF→ 4PF₅ + 10H₂.
1) chemical reaction: 1/5P₄ + 4HF→ 4/5PF₅ + 2H₂.
ΔG = -311kJ ÷ 5 = -62,2 kJ.
2) chemical reaction: 12PF₅ + 30H₂ → 3P₄ + 60HF.
ΔG = -311kJ · (-3) = 933 kJ.
3) chemical reaction: 4PF₅ + 10H₂ → P₄ + 20HF.
ΔG = -311kJ · (-1) = 311 kJ, reversed standard reaction.