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Chemical Equilibrium Test - 28

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Chemical Equilibrium Test - 28
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Weekly Quiz Competition
  • Question 1
    4 / -1
    A solution [H3 O+ ] is 10-4. The solution is
  • Question 2
    4 / -1
    P4 (s) + 5O2(g) ⇌ P4010 (s) What is the equilibrium expression for the above reaction ?
  • Question 3
    4 / -1
    Consider the reactions
    NO2 ⇌ 1/2 N2 + O2, K1 and N2O4 ⇌ 2NO2, K2
    Give the equilibrium constant for the formation of N2O4 from N2 and O2.
  • Question 4
    4 / -1
    The equilibrium constant for the reaction
    SO2 (g) + 1/2 O2 (g) ⇌ SO3(g) is 5 × 10-2 atm. The equilibrium constant of the equation
    2SO3 (g) ⇌ 2SO2 (g) + O2 (g) would be
    Solution

  • Question 5
    4 / -1
    By applying law of mass action, the equilibrium constant K for the reaction
    HA + H2O ⇌ H3O+ + A-, is given as
  • Question 6
    4 / -1
    For the reaction H2 + I2 ⇌ 2 HI, the equilibrium concentration of H2, I2 and HI are 8.0, 3.0 and 28.0 mol/L, respectively. The equilibrium constant is
  • Question 7
    4 / -1
    Ag+ + NH3 ⇌ [Ag (NH3)]+, K1 = 3.5 × 10-3 [Ag(NH3)]+ + NH3 ⇌ [Ag (NH3)2]+, K2 = 1.7 × 10-3
    Then the formation constant of [Ag (NH3)2]+ is
  • Question 8
    4 / -1
    Phosphorus pentacloride dissociates as follows, in a closed reaction vessel,
    PCl5 (g) ⇌ PCl3 (g) + Cl2 (g)
    If total pressure at equilibrium of the reaction mixture is P and degree of dissociation of PCl5 is x, then the partial pressure of PCl3 will be
  • Question 9
    4 / -1
    SO3 (g) ⇌ SO2 (g) + 1/2 O2 (g)
    The equilibrium constant for the above reaction is KC = 4.9 × 10-2. The value of KC for the reaction
    2SO2 (g) + O2 (g) ⇌ 2SO3 (g) will be
  • Question 10
    4 / -1
    1 mole of N2O4 (g) at 300 K is kept in closed container under 1 atm. It is heated to 600 K when 20% by mass of N2O4 (g) decomposes to NO2 (g). The resultant pressure is
    Solution

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