A generic gas, X, is placed in a sealed glass jar and decomposes to form gaseous

Question

A generic gas, X, is placed in a sealed glass jar and decomposes to form gaseous Y and solid Z. Question 3 of 5 Sapling Learning Map A generic gas, X, is placed in a sealed glass jar and decomposes to form gaseous Y and solid Z How are these equibruqntities affected by the initial amount of X(a) placed in the container? Assume constant temperature Changes if initial IX] changes Constant regardless of initial p XP/Y at equilibrium IYVIX1 at equilibrium total pressure at equilibrium mass of Z at equilibrium M at equilibrium (X) at equilibrium Prvious U&Vew; Solaon Check Answer NextExt Hint

Explanation / Answer

consider the given equilibrium

3X ----> Y + Z (s)

the equilibrium constant is given by

K = [Y] / [X]^3

we know that solids are not included in the expression of equilibrium constant

also

the equilibrium constant (K) depends only on the temperature

so

it does not depend on the initial amount of X placed in the container

given the temperature is constant

so

K = [Y[/ [X]^3 = constant , regardless of the initial amount of X placed in the container

[X]^3 / [Y] = constant but not [Y]/[X]

now

the initial amount of [X] is changed

so

the amount of [X] and [Y] will also change keep the the value of [Y]/[X]^3 constant

so

the value of [X] and [Y] changes

now as the value of [X] is changed , the amount of Z produced will also change as [X] is the reactant

now

as [X] and [Y] values are changing

total pressure at equilibrium also changes

so

the answer is

CHANGES IF INITIAL [X] CHANGES :

1) [Y]/[X] at equilibrium

2) total pressure at equilibrium

3) mass of Z at equilibrium

4) [Y] at equilibrium

5) [X] at equilibrium

CONSTANT REGARDLESS OF INITIAL [X] :

[X]^3 / [Y] at equilibrium

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