Solution: Use the standard reaction enthalpies given below to determine ∆H_rxn for the following reaction P₄ (g) + 10 Cl₂(g) ---> 4PCI₅(s)  ∆H_rxn = ? Given PCI₅(s) --> PCl₅(s) + Cl₂(g) ∆H_rxn = +157 kJ P₄(g) + 6 Cl₂(g) --> 4 PCl₃(g) ∆H_rxn = -1207 kJ -2100. kJ -1050. kJ -1786 kJ -1364 kJ -1835 kJ

Problem

Use the standard reaction enthalpies given below to determine ∆H_rxn for the following reaction

P₄ (g) + 10 Cl₂(g) ---> 4PCI₅(s)  ∆H_rxn = ?

Given

PCI₅(s) --> PCl₅(s) + Cl₂(g) ∆H_rxn = +157 kJ
P₄(g) + 6 Cl₂(g) --> 4 PCl₃(g) ∆H_rxn = -1207 kJ


-2100. kJ
-1050. kJ
-1786 kJ
-1364 kJ
-1835 kJ

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