Author Question: Phosphorus and chlorine gases combine to produce phosphorus trichloride: P2(g) + 3Cl2(g) 2PCl3(g)rG ... (Read 180 times)

penza · **on:** Nov 18, 2019

Question 1

In the Haber process, ammonia is synthesized from nitrogen and hydrogen:

N₂(g) + 3H₂(g) → 2NH₃(g)

ΔrG° at 298 K for this reaction is -33.3 kJ mol-1. The value of ΔrG at 298 K for a reaction mixture that consists of 1.7 atm N₂, 1.1 atm H₂, and 0.55 atm NH₃ is ________ kJ mol-1.
◦ -35.3
◦ -72.2
◦ -4.5
◦ -5.02 × 103
◦ -38.3

Question 2

Phosphorus and chlorine gases combine to produce phosphorus trichloride:

P₂(g) + 3Cl₂(g) → 2PCl₃(g)

ΔrG° at 298 K for this reaction is -642.9 kJ mol-1. The value of ΔrG at 298 K for a reaction mixture that consists of

and

is ________ kJ mol-1.
◦ -5.51 × 103
◦ -90.0
◦ -71.1
◦ -647.8
◦ -4.87 × 103

mtmmmmmk · **Reply #1 on:** Nov 18, 2019

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