Problem: Use the standard reaction enthalpies given below to determine ∆Hrxn for the following reactionP4 (g) + 10 Cl2(g) ---> 4PCI5(s)  ∆Hrxn = ?GivenPCI5(s) --> PCl5(s) + Cl2(g) ∆Hrxn = +157 kJP4(g) + 6 Cl2(g) --> 4 PCl3(g) ∆Hrxn = -1207 kJ-2100. kJ-1050. kJ-1786 kJ-1364 kJ-1835 kJ

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Problem Details

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

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

Given

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


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


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Based on our data, we think this problem is relevant for Professor Vartia's class at KU.