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Equilibrium Tes...

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  • Question 1
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    Q. Given the reactions, If one mole each of A and B are take in 5 L flask at 300 K, 0.7 mole of C are formed. Molar concentration of each species at equilibrium, when one mole of each are taken initially is

     

  • Question 2
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    On taking 60.0 g CH3COOH and 46.0 g CH3CH2OH in a 5 L flask in the presence of H30+ (catalyst), at 298 K 44.0 g of CH3COOC2H5 is formed at equilibrium.

    If amount of CH3COOH is doubled without affecting amount of CH3CH2OH, then CH3COOC2H5 formed is 

  • Question 3
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    For the reversible reaction, 

    In a reaction vessel, [NO]= [O2]= 0.01 mol L-1 and [NO2]= 0.1 mol L-1 then above reaction is 

  • Question 4
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    The equilibrium constant for the following reaction, is 1.6 x 105 at 1024 K.

    H2(g) + Br2(g) ⇌2HBr(g)
    HBr (g)at 10.0 bar is introduced into a sealed container at 1024 K. Thus, partial pressure of H2(g)and Br2(g), together is

  • Question 5
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    At 273 K and 1 atm, 1 L of N2O4 (g) decomposes to NO2(g)a s given,

    N2O4(g) ⇌2NO2(g)

    At equilibrium, original volume is 25% less than the existing volume. Percentage decomposition of N2O4 (g) is thus, 

  • Question 6
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    H2S (g) initially at a pressure of 10.0 atm and a temperature of 800 K, dissociates as

    2H2S(g) ⇌ 2H2(g) + S2(g)

    At equilibrium, the partial pressure of S2 vapour is 0.020 atm . Thus, Kp is 

  • Question 7
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    A sample of N2O4(g)with a pressure of 1.00 atm is placed in a flask. When equilibrium is reached, 20% of N2O4(g)has been converted to NO2(g)

    If the original pressure is made 10% of the earlier pressure, then per cent dissociation will be

  • Question 8
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    Following equilibrium is set up at 1000 K and 1 bar in a 5 L flask,

    At equilibrium, NO2 is 50% o f the total volume. Thus, equilibrium constant Kc is 

  • Question 9
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    Following equilibrium is set up at 298 K in a 1 L flask.

    If one starts with 2 moles of A and 1 mole of B, it is found that moles of B and D are equal.Thus Kc is 

  • Question 10
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    At 700 K and 350 bar, a 1 : 3 mixture of N2(g) and H2(g) reacts to form an equilibrium mixture containing X (NH3)= 0.50. Assuming ideal behaviour Kp for the equilibrium reaction, 

  • Question 11
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    Equilibrium constant for the reaction,

    is 1.8 x 109. Hence, equilibrium constant for

  • Question 12
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    A gaseous phase reaction taking place in 1L flask at 400 K is given, 

    Starting with 1 mole N2 and 3 moles H2, equilibrium mixture required 250 mL of 1M H2SO4 . Thus, Kc is 

  • Question 13
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    For the following equilibrium starting with 2 moles SO2 and 1 mole O2 in 1 L flask,

    Equilibrium mixture required 0.4 mole in acidic medium. Hence, Kc is 

  • Question 14
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    Direction (Q. Nos. 14 and 15) This sectionis based on statement I and Statement II. Select the correct answer from the code given below.

    Q. Statement I 

    If Kc = 4 for the following equilibrium,

    Then mixture of 1 mole N2, 3 moles H2 and 2 moles NH3 in 1L flask is in equilibrium.

    Statement II

    Reaction quotient of the given quantities is less than the equilibrium constant.

  • Question 15
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    Statement I

    1 mole A(g) and 1 mole B(g)give 0.5 mole of C(g)and 0.5 mole D(g) at equilibrium.

    On taking 2 moles each of A(g)and B(g), percentage dissociation A(g)and B(g) is also doubled.

    Statement II

    Equilibrium constant, Kc = 1

  • Question 16
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    Direction (Q. Nos. 16-19) This section contains  a paragraph, each describing theory, experiments, data etc. three Questions related to paragraph have been given.Each question have only one correct answer among the four given options (a),(b),(c),(d)

    Passage I
    The equilibrium reaction  has been thoroughly studied Kp = 0.148 at 298 K

    If the total pressure in a flask containing NO2 and N2O4 gas at 25°C is 1.50 atm, what fraction of the N2O4 has dissociated to NO2 ? 

  • Question 17
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    Passage I
    The equilibrium reaction  has been thoroughly studied Kp = 0.148 at 298 K

    Q. If the volume of the container is increased so that the total equilibrium pressure falls to 1.00 atm, then fraction of N2O4 dissociated is

  • Question 18
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    Passage II

    A 15 L flask at 300 K contains 64.4 g of a mixture of NO2 and N2O4 in equilibrium. Given,

    Q. Kc for the above equilibrium is 

  • Question 19
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    Passage II

    A 15 L flask at 300 K contains 64.4 g of a mixture of NO2 and N2O4 in equilibrium. Given,

    Q. Total pressure in the flask is 

  • Question 20
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    Direction (Q. Nos. 20) Choice the correct combination of elements and column I and coloumn II  are given as option (a), (b), (c) and (d), out of which ONE option is correct.

    Q. In the following equilibrium, is set up at 298 K in a 5 L flask. Experiment is carried by taking 0.1 mole each of H2(g)and l2(g). After equilibrium is attained, l2(g)was dissolved in Kl and required 100 mL of 0.1 M Na2S2O3 solution.

    Match the values given in Column II with the respective terms in Column I



  • Question 21
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    H2O is a:

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