7. CRQs of Chemical Equiibrium

CRQs

Chapter: Chemical Equilibrium                                                           Grade:XI 

Teacher: Syed  Fayyaz Hussain                                                          Subject: Chemistry

S.No	Question	SLO#	CL	Marks	Line space	Key words
1	Discuss the conditions of concentration , pressure and temperature in the presence of catalyst for maximum  yield  of ammonia in the reaction N2  + 3H2   ↔ 2NH3  ∆H  = -ve
2	How is the equilibrium constant value used to predict the extent of reaction ?
3	Explain the term “ Solubility Product” . What is the criterion for the precipitation from a solution?
4	Explain the following term i )Reversible reaction  ii)   Equilibrium constant  iii) Solubility product          iv) Law of Mass Action v) Le- Chatelier principle
5	State and explain Le-Chatlelier principle
6	Discuss the condition to increase the yield of NH3 in Haber’s process.
7	Differntiate solubility product with solubility
8	How is Kc used to predict the direction of a reversible reaction?
9	Predict the effect of change  of temperature and effect pressure on following equilibrium mixture :  H2 +  I2   +  Heat    ↔   2HI
10	State and explain Law of Mass Action and derive the  equilibrium constant expression for the general equilibrium reaction : mA    + nB     ↔    xC     +   yD
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S.No	Question	SLO#	CL	Marks	Line space	Key words
	Write the definition of chemical equilibrium.
	Define the following  i) Chemical equilibrium   ii) Reversible reaction iii) Irreversible reaction
	Write the equilibrium  expression of the following             i)   N2 + 3H2↔2NH3             ii)  H2 + I2 ↔ 2 HI
	Derive the Equilibrium expression of the following             mA  + nB ↔ x C + y D             where the molar concentrations of A ,B ,C and D  are respectively     [A],[B],  [C]    and [D]
	Derive the Equilibrium expression  Kp of the following             mA  + nB ↔ x C + y D             where the Partial pressures   of A ,B ,C and D  are respectively             PA, PB  , PC         and PD
	Derive the Equilibrium expression of the following             mA  + nB ↔ x C + y D             where the number  of moles  A ,B ,C and D  are respectively             m , n , x  and y
	Discuss the effect of temperature on chemical               equilibrium state of the following              A↔B      ∆H=negative
	Discuss the effect of temperature on chemical               equilibrium state of the following              A↔B      ∆H= Positive
	Discuss the effect of pressure  on chemical               equilibrium state of the following              A2 + 3B2 ↔2AB3
	Predict the condition of equilibrium sate  for the following reaction        N2 + 3H2↔2NH3  When the equilibrium mixture contain  0.25 M of N2 , 0.25 M of  H2 and  0.12M NH3. The equilibrium constant is