For the reaction 2HCl(g)H2(g)+Cl2(g),K = 0.290 at 400 K. If 1.50x10-3 M of HCl,

ID: 967985 • Letter: F

Question

For the reaction 2HCl(g)H2(g)+Cl2(g),K = 0.290 at 400 K. If 1.50x10-3 M of HCl, H2, and Cl2 are mixed initially at 400 K, which one of the following will happen?
a.The concentrations of HCl and Cl2 will increase as the system approaches equilibrium.
b.The concentrations of H2 and Cl2 will increase as the system approaches equilibrium.
c.The system is at equilibrium.
d.The concentrations of H2 and HCl will decrease as the system approaches equilibrium.
e.The concentration of HCl will increase as the system approaches equilibrium.

Explanation / Answer

b.The concentrations of H2 and Cl2 will increase as the system approaches equilibrium.

as Kc is 0.29 concentration of products will increase as reaction proceeds to attain equilibrium

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For the reaction 2HCl(g)H2(g)+Cl2(g),K = 0.290 at 400 K. If 1.50x10-3 M of HCl,

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Explanation / Answer

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