Chemistry

Problem

At 298 K the equilibrium

N_{2}O_{4}

(g) ⇌ 2

NO_{2}

(g) exists in a closed container. A sudden injection of

NO_{2}

gas instantly doubles its concentration, leaving temperature unchanged. Which statement best predicts the system’s response as it re-establishes equilibrium? a) [

N_{2}O_{4}

] will increase and the final

K

value will be larger. b) [

N_{2}O_{4}

] will decrease and

K

remains unchanged. c) [

N_{2}O_{4}

] will increase while

K

remains unchanged. d) [

N_{2}O_{4}

] will remain constant because only

NO_{2}

was added.

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