मराठी
कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान इयत्ता ११

Write the expression for the equilibrium constant, Kc for following reactions: FeX3+(aq)+3OHX−(aq)↽−−⇀Fe(OH)X3(s)

Advertisements
Advertisements

प्रश्न

Write the expression for the equilibrium constant, Kc for following reactions:

\[\ce{Fe^{3+}(aq) + 3OH^-(aq) ⇌ Fe(OH)3(s)}\]

संख्यात्मक
Advertisements

उत्तर

`"K"_"c" = ["Fe"("OH")_(3("s"))]/(["Fe"^(3+)(aq)]["OH"^(-)("aq")]^3) = 1/(["Fe"^(3+) ("aq")]["OH"^(-)("aq")]^3)`

shaalaa.com
Law of Chemical Equilibrium and Equilibrium Constant
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 6: Equilibrium - EXERCISES [पृष्ठ २३२]

APPEARS IN

एनसीईआरटी Chemistry - Part 1 and 2 [English] Class 11
पाठ 6 Equilibrium
EXERCISES | Q 7.4 - (iv) | पृष्ठ २३२

संबंधित प्रश्‍न

Write the expression for the equilibrium constant, Kc for the following reactions:

\[\ce{CH3COOC2H5(aq) + H2O(l) ⇌CH3COOH (aq) + C2H5OH (aq)}\]


Write the expression for the equilibrium constant, Kc for the following reactions

\[\ce{I2 (s) + 5F2 ⇌ 2IF5}\]


A reaction between N2 and O2 takes place as follows:

\[\ce{2N2 (g) + O2 (g) ⇌ 2N2O (g)}\]

If a mixture of 0.482 mol of N2 and 0.933 mol of O2 is placed in a 10 L reaction vessel and allowed to form N2O at a temperature for which Kc = 2.0 × 10-37, determine the composition of equilibrium mixture.


At 700 K, the equilibrium constant for the reaction

\[\ce{H_{2(g)} + I_{2(g)} ↔ 2HI_{(g)}}\] 

is 54.8. If 0.5 molL–1 of HI(g) is present at equilibrium at 700 K, what are the concentration of H2(g) and I2(g) assuming that we initially started with HI(g) and allowed it to reach equilibrium at 700 K?


Calculate a) ΔG°and b) the equilibrium constant for the formation of NO2 from NO and O2 at 298 K

\[\ce{NO(g) + 1/2 O_2 (g) <=> NO_2(g)}\]

where ΔfG (NO2) = 52.0 kJ/mol

ΔfG (NO) = 87.0 kJ/mol

ΔfG (O2) = 0 kJ/mol


The value of Kc for the reaction 3O2 (g) ↔ 2O3 (g) is 2.0 ×10–50 at 25°C. If the equilibrium concentration of O2 in the air at 25°C is 1.6 ×10–2, what is the concentration of O3?


The reaction, \[\ce{CO(g) + 3H2(g) ↔ CH4(g) + H2O(g)}\] is at equilibrium at 1300 K in a 1L flask. It also contains 0.30 mol of CO, 0.10 mol of H2 and 0.02 mol of H2O and an unknown amount of CH4 in the flask. Determine the concentration of CH4 in the mixture. The equilibrium constant, Kc for the reaction at the given temperature is 3.90.


For the reaction \[\ce{H2 (g) + I2 (g) ⇌ 2HI (g)}\], the standard free energy is  ∆GΘ > 0. The equilibrium constant (K ) would be ______.


For the reaction \[\ce{A(g) <=> B(g)}\] at 495 K, ΔG° = −9.478 kJ mol−1

If we start the reaction in a closed container at 495 K with 22 millimoles of A, the amount of B in the equilibrium mixture is ______ millimoles. (Round off to the Nearest Integer).

[R = 8.314 J mol−1 K−1; ln 10 = 2.303]


Sulphide ion in alkaline solution reacts with solid sulphur to form polysulphide ions having formula, \[\ce{S^{2-}2}\], \[\ce{S^{2-}3}\], \[\ce{S^{2-}4}\], etc. if K1 = 12 for \[\ce{S + S^{2-} <=> S^{2-}2}\] and K2 = 132 for \[\ce{2S + S^{2-} <=> S^{2-}3}\], K3 = ______ for \[\ce{S + S^{2-}2 <=> S^{2-}3}\].


For which of the following Kp is less than Kc?


The value of Kc is 64 at 800 K for the reaction \[\ce{N2(g) + 3H2(g) <=> 2NH3(g)}\].

The value of Kc for the following reaction is:

\[\ce{NH3(g) <=> 1/2N2(g) + 3/2H2(g)}\]


In which one of the following equilibria, KP ≠ Kc?


A solid XY kept in an evacuated sealed container undergoes decomposition to form a mixture of gases X and Y at temperature T. The equilibrium pressure is 10 bar in the vessel. Kp for this reaction is ______.


In which of the following equilibria, Kp and Kc are not equal?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×