Consider the following equilibrium:
NH4Cl(s) 
NH3(g) + HCl(g)
Suppose a vessel containing NH4Cl(s) ,NH3(g) and HCl(g) is at equilibrium.If the volume of the vessel is instantaneously doubled while keeping the temperature constant,when a new equilibrium is reached,which of the following statements is incorrect?
A) The value of Kp remains unchanged.
B) The number of moles of NH4Cl decreases.
C) The total pressure is halved.
D) The partial pressures of NH3 and HCl in the vessel remain unchanged.
E) The amount of NH3 and HCl doubles.
Correct Answer:
Verified
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