Chemical Equilibrium and its Characteristics

IMPORTANT

Chemical Equilibrium and its Characteristics: Overview

This topic covers concepts, such as, Chemical Equilibrium, Condition for Chemical Equilibrium, Reversible Reaction & Irreversible Reactions etc.

Important Questions on Chemical Equilibrium and its Characteristics

EASY
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Adiabatic expansions of an ideal gas is accompanied by

                               

MEDIUM
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Which one of the following is NOT an example of heterogeneous equilibrium?

MEDIUM
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For the reaction Na2SO4s2Na(aq) ++SO42- (aq) if ΔG°=+58.7 kJ, then find the value of Ksp of Na2SO4 in water at 27°C.

MEDIUM
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For the equilibrium, PCl5(g)PCl3(g)+Cl2(g) at 298K,Kc=1.8×10-7. Then, ΔGfor this reaction will be ______ [ Given log4.5=0.6484]

MEDIUM
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When reaction is carried out at standard states then at the equilibrium __________

EASY
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2SO2(g)+O2(g)2SO3(g)

It is an example of _____ (homogeneous/ heterogeneous) equilibrium?

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Which of the following is an example of homogeneous equilibrium?

MEDIUM
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Among the following, the correct statement about the chemical equilibrium is.

EASY
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Which of the following statements is correct?

EASY
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Which of the following graph will show the equilibrium condition for the reaction AB ?

HARD
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Consider the reaction: 2 N2O4 g4NO2 g 

If -dN2O4dt=KN2O41

+dNO2dt=K1 N2O41 then correct relation is :-

EASY
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When 1 mole of N2 and 1 mole of H2 is enclosed in 5 L vessel and the reaction is allowed to attain equilibrium, it is found that at equilibrium there is x mole of H2. The number of moles of NH3 formed would be:

HARD
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Which of the following statements is correct about establishment of equilibrium?

HARD
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For the gaseous reaction PCl5gPCl3g+Cl2g, The degree of dissociation of  PCl5 is 50% at 400 K and 1.0 atm pressure. Assuming ideal behaviour the density of equilibrium gaseous mixture will be:

EASY
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Which of the following is a reversible reaction ?

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In which direction does the reaction tend to shift to reach equilibrium given at a particular time, the analysis shows that composition of reaction mixture is 3.0 mol L-1 N2, 2.0 mol L-1 H2 and 0.5 mol L-1 NH3.

Equilibrium constant, Kc for the below reaction is

N 2 g + 3H 2 g 2NH 3 g at 500 K is 0.061

 

EASY
IMPORTANT

A+BC+2D.....(i)

A+EC+F.(ii)

If K1 and K2 are equilibrium constants for the reactions (i) and (ii), respectively, then find out the equilibrium constant for the reaction E+2DB+F.

HARD
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Find the total pressure of cases over a mixture of X and Y, ​​​​​​​​when two solid compounds 'X' and 'Y' dissociates at a certain temperature is as follows:
X(s)A(g)+2B(g)Kp1=9×10-3atm3

Y(s)2B(g)+C(g) Kp2=4.5×10-3 atm3

MEDIUM
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Calculate variation of EMF of a cell E, with temperature T, If G=H-TS and G=H+TdGdTp.

HARD
IMPORTANT

Find the value of the equilibrium constant of the reaction x+y⇌z at 227C whose G° is equal to -4.606 kcal.