Chemistry

Chemistry

Problem

For the gas‐phase equilibrium

2\,\text{NOCl}(g)\rightleftharpoons2\,\text{NO}(g)+\text{Cl}_2(g)

at 298 K, the equilibrium constant is

K_p=1.1

. A mixture is prepared with

P_{\text{NOCl}}=3.0\,\text{atm}

,

P_{\text{NO}}=150\,\text{kPa}

, and

P_{\text{Cl}_2}=0.50\,\text{atm}

. Which option correctly states

Q_p

and the resulting shift? a)

Q_p\approx8.2

; the reaction will proceed toward reactants. b)

Q_p\approx0.25

; the reaction will proceed toward products. c)

Q_p\approx0.12

; the reaction will proceed toward products. d)

Q_p\approx0.12

; the reaction will proceed toward reactants.

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