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lesantik [10]
3 years ago
5

At some temperature for the equilibrium PX3(g) + X2(g) # PX5(g) the equilibrium constant is 0.74. At the same temperature the eq

uilibrium constant for PX5(9) + PX3(g) X2(g) is​
Chemistry
1 answer:
mariarad [96]3 years ago
4 0

Answer: The equilibrium constant for PX_5(g)\rightarrow PX_3(g)+X_2(g) is 1.35

Explanation:

Equilibrium constant is defined as the ratio of concentration of products to the concentration of reactants each raised to the power their stoichiometric ratios. It is expressed as K_c  

For the given chemical reaction:

PX_3(g)+X_2(g)\rightarrow PX_5(g)

The expression for K_c is written as:

K_c=\frac{[PX_5]^1}{[PX_3]^1[X_2]^1}

0.74=\frac{[PX_5]^1}{[PX_3]^1[X_2]^1}

For the reverse chemical reaction:

PX_5(g)\rightarrow PX_3(g)+X_2(g)

The expression for K_c' is written as:

K_c'=\frac{[PX_3]^1[X_2]^1}{[PX_5]^1}

K_c'=\frac{1}{K_c}=\frac{1}{0.74}=1.35

The equilibrium constant for PX_5(g)\rightarrow PX_3(g)+X_2(g) is 1.35

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