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What Is the K_c Equilibrium-Constant Expression for the Following Equilibrium $\rightleftharpoons$

Question 16

Multiple Choice

What is the K_c equilibrium-constant expression for the following equilibrium? NiO(s) + H₂(g) $\rightleftharpoons$ Ni(s) + H₂O(g)

A) $\frac { \left[ \mathrm { H } _ { 2 } \mathrm { O } \right] } { \left[ \mathrm { H } _ { 2 } \right] }$
B) ? $\frac { [ \mathrm { Ni } ] \left[ \mathrm { H } _ { 2 } \mathrm { O } \right] } { \left[ \mathrm { H } _ { 2 } \right] }$
C) ? $\frac { [ \mathrm { Ni } ] \left[ \mathrm { H } _ { 2 } \mathrm { O } \right] } { [ \mathrm { NiO } ] \left[ \mathrm { H } _ { 2 } \right] }$
D) ? $\frac { \left[ \mathrm { H } _ { 2 } \right] } { \left[ \mathrm { H } _ { 2 } \mathrm { O } \right] }$
E) ? $\frac { [ \mathrm { NiO } ] \left[ \mathrm { H } _ { 2 } \right] } { [ \mathrm { Ni } ] \left[ \mathrm { H } _ { 2 } \mathrm { O } \right] }$