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Write the Kp expression for PCl(5(g))hAr...

Write the Kp expression for `PCl_(5(g))hArr PCl_(3(g)) + Cl_(2(g))`

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Explore conceptually related problems

2 mole PCl_5 is heated in 4 L closed vessel at definite temperature. At equilibrium 55% PCl_5 remain undissociated. Find K_c . Reaction : PCl_(5(g)) hArr PCl_(3(g)) + Cl_(2(g))

In the reaction PCl_(5(g)) hArr PCl_(3(g)) + Cl_(2(g)) , the equilibrium is established by to take first Cl_2 then decomposition of PCl_5 will be increase or decrease ?

Knowledge Check

  • PCl_5,PCl_3 and Cl_2 are at equilibrium at 500 K in a closed container and their concentrations are 0.8 xx 10^(-3) "mol L"^(-1), 1.2 xx 10^(-3) "mol L"^(-1) and 1.2 xx 10 "mol L"^(-1) , respectively. The value of K_c for the reaction PCl_(5(g)) hArr PCl_(3(g)) + Cl_(2(g)) will be

    A
    `1.8xx10^(3) "mol L"^(-1)`
    B
    `1.8xx10^(-3)`
    C
    `1.8xx10^(-3) "mol L"^(-1)`
    D
    `0.55xx10^4`

  • For the gas phase reaction, PCI_(5(g)) hArr PCI_(3(g)) + CI_(2(g)) Which of the following conditions are correct ?

    A
    `Delta H = 0 and Delta S lt 0`
    B
    `Delta H gt 0 and Delta S gt 0`
    C
    `Delta h lt 0 and Delta S lt 0`
    D
    `Delta H gt 0 and Delta S lt`

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    Explore conceptually related problems

    3.00 mol of PCl_5 kept in 1 L closed reaction vessel was allowed to attain equilibrium at 380 K. Calculate composition of the mixture at equilibrium. K_c =1.80 PCl_(5(g)) hArr PCl_(3(g)) + Cl_(2(g))

    Does the number of moles of reaction products increase, decrease or remain same when each of the following equilibria is subjected to a decrease in pressure by increasing the volume? (a) PCl_(5(g)) hArr PCl_(3(g)) +Cl_(2(g)) (b) CaO_((s)) + CO_(2(g)) hArr CaCO_(3(s)) (c) 3Fe_((s)) + 4H_2O_((g)) hArr Fe_3O_(4(s)) + 4H_(2(g))

    At 473K, equilibrium constant K_c for decomposition of phosphorus pentachloride, PCl_5 is 8.3 xx10^(-3) . If decomposition is depicted as, PCl_(5(g)) hArr PCl_(3(g)) + Cl_(2(g)) ,Delta_r H^ө =124.0 kJ mol^(-1) (a) Write an expression for K_c for the reaction. (b) What is the value of K_c for the reverse reaction at the same temperature ? (c) What would be the effect on K_c if (i) more PCl_5 is added (ii) pressure is increased (iii) the temperature is increased ?

    For reaction, PCl_(5(g)) hArr PCl_(3(g)) + Cl_(2(g)), K_c=1.79 "L mol"^(-1) .Then at 500 K state the value of K_p with respect to R.

    A sample of pure PCl_5 was introduced into an evacuated vessel at 473 K. After equilibrium was attained, concentration of PCl_5 was found to be 0.5 xx 10^(-1) "mol L"^(-1) . If value of K_c is 8.3 xx 10^(-3) , what are the concentrations of PCl_3 and Cl_2 at equilibrium ? PCl_(5(g)) hArr PCl_(3(g)) +Cl_(2(g))

    Write the expression for the equilibrium constant, K_c for each of the following reactions (1) 2NOCl_((g)) hArr 2NO_((g)) + Cl_(2(g)) (2) 2Cu(NO_3)_(2(s)) hArr 2CuO_((s)) + 4NO_(2(g)) + O_(2(g)) (3) CH_3COOC_2H_(5(aq)) + H_2O_((l)) hArr CH_3COOH_((aq)) + C_2H_5OH_((aq)) (4) Fe_((aq))^(3+) + 3OH_((aq))^(-) hArr Fe(OH)_(3(s)) (5) I_(2(s)) + 5F_(2(s)) hArr 2IF_(5(g))

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