law of mass action, 4 (GW-13)

Given be This Iodine-hydrogen balance:
H₂ + I₂ ⇄ 2 HI
Lthe island The the following exercises. The Indication 't=0' It should be heated, that The Starting situation Considered will be, 't=GW' that This The system The Commission Now In the Balance is located. It is the same. are The Information to be provided z.B. In the case of H₂ as Concentrations (mol/l) to to understand.
Notes: In the case of d) It should be Additionally K Calculated will be.
Notes: In the case of e) be Not yet Additionally K=54.5 given.

		H2	I2	HI
a)	t=0	1.0	1.0	0
	t=GW	0.3	?	?
b)	t=0	2.0	1.0	0
	t=GW	1.5	?	?
c)	t=0	3.0	0	0
	t=GW	2	?	?
d)	t=0	9.32	8.05	0
	t=GW	?	?	13.5
e)	t=0	0	0	0.015
	t=GW	?	?	?

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• October 1, 2026 at 10:12 am #9298
    Aufgabe: GW-13    

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  Given be This Iodine-hydrogen balance:
  H₂ + I₂ ⇄ 2 HI
  Lthe island The the following exercises. The Indication 't=0' It should be heated, that The Starting situation Considered will be, 't=GW' that This The system The Commission Now In the Balance is located. It is the same. are The Information to be provided z.B. In the case of H₂ as Concentrations (mol/l) to to understand.
  Notes: In the case of d) It should be Additionally K Calculated will be.
  Notes: In the case of e) be Not yet Additionally K=54.5 given.

  		H2	I2	HI
  a)	t=0	1.0	1.0	0
  	t=GW	0.3	?	?
  b)	t=0	2.0	1.0	0
  	t=GW	1.5	?	?
  c)	t=0	3.0	0	0
  	t=GW	2	?	?
  d)	t=0	9.32	8.05	0
  	t=GW	?	?	13.5
  e)	t=0	0	0	0.015
  	t=GW	?	?	?

  ---

  
  

    Aufgabe: GW-13    

  ⓘ    🔄 Reload     🖨️ print           ◀  –   ▶     ?! Question/Answer ?!

  Given be This Iodine-hydrogen balance:
  H₂ + I₂ ⇄ 2 HI
  Lthe island The the following exercises. The Indication 't=0' It should be heated, that The Starting situation Considered will be, 't=GW' that This The system The Commission Now In the Balance is located. It is the same. are The Information to be provided z.B. In the case of H₂ as Concentrations (mol/l) to to understand.
  Notes: In the case of d) It should be Additionally K Calculated will be.
  Notes: In the case of e) be Not yet Additionally K=54.5 given.

  		H2	I2	HI
  a)	t=0	1.0	1.0	0
  	t=GW	0.3	?	?
  b)	t=0	2.0	1.0	0
  	t=GW	1.5	?	?
  c)	t=0	3.0	0	0
  	t=GW	2	?	?
  d)	t=0	9.32	8.05	0
  	t=GW	?	?	13.5
  e)	t=0	0	0	0.015
  	t=GW	?	?	?

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  October 1, 2026 at 10:12 am #9299
  Lösung:

  1. Consumption of H₂: 1.0 mol – 0.3 mol = 0.7 mol
         This means that Applicable, without ROck reaction:
         0.7 mol H₂ + 0.7 mol I₂ → 1.4 mol HI
         FThe Commission shall adopt a decision. This GW Applicable So what do you mean?:
         c(H₂) = 0.3 mol, c(I₂)=0.3 mol, c(HI)=1.4 mol
  2. Consumption of H₂: 0.5 mol
         This means that Applicable, without ROck reaction:
         0.5 mol H₂ + 0.5 mol I₂ → 1.0 mol HI
         FThe Commission shall adopt a decision. This GW Applicable So what do you mean?:
         c(H₂) = 1.5 mol, c(I₂)=0.5 mol, c(HI)=1 mol
  3. Consumption of H₂: 1.0 mol
         1 mol H₂ + 1 mol I₂ → 2 mol HI
         FThe Commission shall adopt a decision. This GW Applicable So what do you mean?:
         c(H₂) = 2 mol, c(I₂)=-1 mol, c(HI)=2 mol
         ABER: c(I₂) = -1 mol power No Meaning, or with Other Words: reaction not possible, There you go. At the same time, Starting Not at all not I in of any kind Form of which: is, So what do you mean? Neither as I₂ Not yet as HI.
  4. Es to be created 13.5 mol HI. Manufacture, without ROck reaction:
         6.75 mol H₂ + 6.75 mol I₂ → 13.5 mol HI
         FThe Commission shall adopt a decision. This GW Applicable So what do you mean?:
         c(H₂) = 2.57 mol, c(I₂) = 1.3 mol, c(HI) = 13.5 mol
         K = c²(HI)/(c(H₂)·c(I₂)) = 13.5²/(2.57·1.3) = 54.5
  5. Es of which:, z.B.: x be Number of H₂
         This means that Applicable: 2·Anzahl(H₂) = Anzahl(HI)
         FThe Commission shall adopt a decision. This GW Applicable So what do you mean?:
         c(H₂) = 0+x mol, c(I₂)= 0+x mol, c(HI)=(0.015-2x) mol
         K = 54.5 = (0.015-2x)² /(x·x)
         x₁ = -0.0027 (Lthe island power Chemical None of them Meaning)
         x₂ = 0.0015987
         FThe Commission shall adopt a decision. This GW Applicable So what do you mean?:
         c(H₂) = 0.0015987 mol, c(I₂)= 0.0015987 mol, c(HI)=0.011803 mol

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