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132. A sample of pure PCl₅ was introduced into an evacuated vessel at 473K. After equilibrium was attained, the concentration of PCl₅ was found to be 0·5 × 10^–1 mol L^–1. If the value of K_c is 8·3 × 10^–3, what are the concentrations of PCl₃ and Cl₂ at equilibrium?

PCl subscript 5 left parenthesis straight g right parenthesis space rightwards harpoon over leftwards harpoon space space space PCl subscript 3 left parenthesis straight g right parenthesis space plus space Cl subscript 2 left parenthesis straight g right parenthesis

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133. 3·00 mol of PCl₅ kept in 1L closed reaction vessel was allowed to attain equilibrium at 380K. Calculate the composition of the mixture at equilibrium, K_c = 1·80.

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134.

Bromine monochloride (BrCl) decomposes into bromine and chlorine and attains the equilibrium:
$space 2 BrCl space rightwards harpoon over leftwards harpoon space space space space Br subscript 2 left parenthesis straight g right parenthesis space plus space Cl subscript 2 left parenthesis straight g right parenthesis$
for which K_c = 32 at 500 K. If initially pure BrCl is present at a concentration of 3·30×10^–3 mol L^–1 what is its molar concentration in the mixture at equilibrium?

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135. The value of K_c = 4·24 at 800 K for the reaction:

CO left parenthesis straight g right parenthesis space plus space straight H subscript 2 straight O left parenthesis straight g right parenthesis space space space rightwards harpoon over leftwards harpoon space space space CO subscript 2 left parenthesis straight g right parenthesis space plus space straight H subscript 2 left parenthesis straight g right parenthesis

Calculate equilibrium concentration of CO₂, H₂, CO and H₂O at 800K, if only CO and H_2O are present initially at concentrations of 0·10M each.

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136. Dihydrogen gas used in Haber’s process is produced by reacting methane from natural gas with high temperature steam. The first stage of two stage reaction involves the formation of CO and H₂. In second stage, CO formed in first stage is reacted with more steam in water gas shift reaction,

CO left parenthesis straight g right parenthesis space plus space straight H subscript 2 straight O left parenthesis straight g right parenthesis space space rightwards harpoon over leftwards harpoon space space space CO subscript 2 left parenthesis straight g right parenthesis space plus space straight H subscript 2 left parenthesis straight g right parenthesis

If a reaction vessel at 400°C is charged with an equimolar mixture of CO and steam such that p_CO = 4·0 bar, what will be the partial pressure of H₂ at equilibrium ? K_p = 10·1 at 400°C.

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Short Answer Type

137.

The value of $increment straight G degree$ for the phoshorylation of glucose in glycolysis is 13.8 kJ/mol. Find the value of K_c at 298 K.

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138.

Hydrolysis of sucrose gives,
$Sucrose space plus space straight H subscript 2 straight O space rightwards harpoon over leftwards harpoon space space Glucose space plus space Fructose$
Equilibrium constant K_c for the reaction is $2 cross times 10 to the power of 13 space at space 300 space straight K.$ Calculate $increment straight G degree$ at 300K.