Question

Which of the following selected
reactions “Kp" is less than one
at 298K​

Answer 1

Answer:

Explanation:

For the given reaction,

2NO(g)+O2(g)⇌2NO2(g)

Given , ΔG∘f(NO)=86.6kJ/moI

ΔG∘f(NO2)=?

KP=1.6×1012

Now, wc have,

ΔG∘f=2ΔG∘fNO2−[2ΔG∘fNO]+ΔG∘fO2

=−RTInKP=2ΔG∘fNO2−[2×86,600+0]

ΔG∘fNO2=12[2×86600−R×In(1.6×1012)]

ΔG∘fNO2=0.5[2×86,600−R×(298)In(1.6×1012)]