Question R15 Q20 - NSB 2019

For which of the following reactions does Kp, the pressure equilibrium constant, equal Kc, the concentration equilibrium constant?

W) Hydrogen (gas) + chlorine (gas) yields 2 hydrogen chloride (gas)

X) 2 hydrogen (gas) + oxygen (gas) yields 2 water (gas)

Y) Nitrogen (gas) + 2 oxygen (gas) yields 2 nitrogen dioxide (gas)

Z) Dinitrogen tetroxide (gas) yields 2 nitrogen dioxide (gas)

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