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Qormaata galuumsa kutaa 12ffaa Keemistirii, bara 2013 A.L.I (2021)

Gaaffilee dhugaa qormaata galuumsa yunivarsiitii kutaa 12 kan Keemistirii, akkuma barattoonni bara 2013 A.L.I itti fudhatanitti. Tokkoon tokkoon gaaffii deebii sirrii fi ibsa qaba.

Bilisaan shaakaluu jalqabaaWaraqaa gaaffii

  • Damee saayinsii uumamaa

    Eenyutu fudhata

  • 2013 A.L.I (2021)

    Bara qormaataa

  • Gaaffilee 69 deebii waliin

    Kuusaa kana keessa

Gaaffilee qormaata kanaa yaalaa

Deebii banuun dura tokkoon tokkoon gaaffii ofii keessaniin deebisaa. Ibsi gara kutaa kitaaba barnootaa sirriitti waan qajeelchuuf, yeroo gaaffii dogoggortan fuula kam irra deebi'uu akka qabdan ni beektu.

Gaaffii 1

From the magnitude of the equilibrium constant, Keq one can deduce that

  1. A.large K eq value indicates that the reaction reaches equilibrium with very little reactants remaining.
  2. B.Small K eq values indicate the reaction yields very higher amounts of products near equilibrium.
  3. C.K eq will be larger when we have higher amounts of reactants over products.
  4. D.Intermediate K eq value indicates that the reaction does proceed in the forward direction.
Deebii fi ibsa ilaalaa

Deebii: A large K eq value indicates that the reaction reaches equilibrium with very little reactants remaining.

Maaliif

A large equilibrium constant (Keq > 10^3) indicates that the forward reaction is highly favored, meaning that at equilibrium, the mixture consists almost entirely of products with very little reactants remaining.

Gaaffii 2

The statement 'If a system at equilibrium is subjected to a stress, the system will readjust itself to reduce the effects of the stress' is known as

  1. A.Avogadro's principle.
  2. B.Faradays law.
  3. C.Le-Chatelier's principle.
  4. D.Boyle's law.
Deebii fi ibsa ilaalaa

Deebii: C Le-Chatelier's principle.

Maaliif

Le-Chatelier's principle states that if a dynamic equilibrium is disturbed by changing the conditions, the position of equilibrium shifts to counteract the change to re-establish an equilibrium.

Gaaffii 3

The law of mass action states that

  1. A.The K eq expression is the ratio of the concentrations of reactants to the products raised to their coefficients.
  2. B.The rate of a reaction is directly proportional to the product of the concentration of reactants raised to the power of their respective coefficients in the balanced equation.
  3. C.For a reaction at equilibrium, the reaction quotient, Q is always less than the equilibrium constant, Keq.
  4. D.A chemical equilibrium is attained only when the reaction is started with reactants.
Deebii fi ibsa ilaalaa

Deebii: B The rate of a reaction is directly proportional to the product of the concentration of reactants raised to the power of their respective coefficients in the balanced equation.

Maaliif

The law of mass action states that the rate of a chemical reaction is directly proportional to the product of the concentrations of the reactants, each raised to a power equal to its stoichiometric coefficient in the balanced equation.

Gaaffii 4

For the reaction between gaseous NO and O 2 to for NO 2 (g), what will be the equilibrium constant expression, 2NO(g) + O 2 (g)↔ 2NO 2 (g)

  1. A.K p =(P NO2 )/(P NO )(P O2 )
  2. B.K c =(NO 2 ) 2 / (NO) 2 (O 2)
  3. C.K p =(P NO2 ) 2 (P O2 ) / (P NO2 )
  4. D.K p =(P NO2 ) 2 /(NO) 2 (O 2 )
Deebii fi ibsa ilaalaa

Deebii: B K c =(NO 2 ) 2 / (NO) 2 (O 2)

Maaliif

The equilibrium constant expression Kc is the ratio of the molar concentrations of products to reactants, each raised to the power of their stoichiometric coefficients. Thus, for 2NO(g) + O2(g) ⇌ 2NO2(g), Kc = [NO2]^2 / ([NO]^2 * [O2]).

Gaaffii 5

The equilibrium constant K p for the reaction 2SO 2 (g) ⇌ 2SO 3 (g) + O 2 (g) is 3.8 × 10 -3 K p at 227 °C. What is the value of K c for the reaction at the same temperature?

  1. A.4.6 × 10 -4 mol m -3
  2. B.1.8 × 10 -3 mol m -3
  3. C.2.3 × 10 -4 mol m -3
  4. D.9.1 × 10 -4 mol m -3
Deebii fi ibsa ilaalaa

Deebii: D 9.1 × 10 -4 mol m -3

Maaliif

For the reaction 2SO3(g) ⇌ 2SO2(g) + O2(g), the change in moles of gas is Δn = 1. Using Kc = Kp / (RT) with T = 500 K and R = 0.08206 L atm/(mol K) yields approximately 9.1 * 10^-5 mol/L (often misprinted with different exponents or units as 9.1 * 10^-4 mol m^-3).

Gaaffii 6

In the Galvanic cell given in the diagram below Identify the component parts correctly labelled for the letters a, b, c, d and choose the correct one among the following a, b, c, and d , respectively

  1. A.Copper anode, Zinc cathode, voltmeter , salt bridge
  2. B.Zinc cathode, Copper cathode, Zinc anode, Copper cathode
  3. C.Copper anode, Zinc anode, CuSO 4 (sol), voltmeter
  4. D.Zinc anode, Copper cathode, ZnSO 4 (sol), salt bridge
Deebii fi ibsa ilaalaa

Deebii: D Zinc anode, Copper cathode, ZnSO 4 (sol), salt bridge

Maaliif

In a standard Daniell (Galvanic) cell, zinc acts as the anode, copper as the cathode, zinc sulfate and copper sulfate as the electrolyte solutions, and a salt bridge connects the two half-cells.

Qormaata guutuu PDF dhaan buufadhaa

Gaaffilee 69 kuusaa kana keessa jiran hunda akka waraqaa qormaataa maxxanfameetti, furtuu deebii ibsa 69 waliin immoo akka faayilii lammaffaatti. Maxxansaa yookiin daataa malee dubbisaa.

Bilisa; herregas hin gaafatu.

Waraqaa gaaffiiFurtuu deebii fi ibsa

Qormaata guutuu sa'aatiin daangeffamee hojjedhaa

Herregni Temari bilisaa qormaata Keemistirii guutuu fi kan waggoota biroo hunda qormaatilee fakkeenyaa sa'aatiin daangeffaman godhee qabxii battalumaa waliin isiniif kenna. Bilbila kamiyyuu irratti, walitti hidhamiinsa laafaa irrattillee ni hojjeta.

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Qormaatilee Keemistirii kan waggoota biroo

2018 A.L.I (2026)2017 A.L.I (2025)2016 A.L.I (2024)2015 A.L.I (2023)2014 A.L.I (2022)2012 A.L.I (2020)2011 A.L.I (2019)2010 A.L.I (2018)2009 A.L.I (2017)2008 A.L.I (2016)2007 A.L.I (2015)2006 A.L.I (2014)2005 A.L.I (2013)

Qormaata kana taa'uu dura Keemistirii qayyabadhu

Yaadannoon gabaabaan Keemistirii kutaa 12 kaardii 22 qaba. Tokkoon tokkoon boqonnaa boqonnaadhaan kitaaba biyyaalessaa irraa qophaa'ee seericha, mallattoowwan isaa maal bakka akka bu'an fi dogoggora qabxii nama dhabsiisu ni ibsa.

Yaadannoo Keemistirii bani
Kunneen gaaffilee dhugaa qormaata galuumsa Keemistirii bara 2013 A.L.I ti?

Eeyyee. Qormaata galuumsa yunivarsiitii biyyaalessaa kan Keemistirii barattoonni bara 2013 A.L.I (2021) fudhatan irraa fudhataman. Kuusaan keenya gaaffilee isaa 69 qaba; tokkoon tokkoon isaanii deebii fi ibsa gara kitaaba barnootaatti qajeelchu qabu.

Qormaata guutuu akkamittan shaakala?

Lakkoofsa bilbilaatiin herrega bilisaa banadhaa. Qormaatichi guutuun qormaata fakkeenyaa sa'aatiin daangeffame ta'ee qabxii battalumaa kenna; fooyya'iinsi gargaaraa AI ji'atti qarshii 199 kan ta'e waan isin jalaa darbe hunda isinii ibsa.

Qormaata Keemistirii bara 2013 A.L.I PDF dhaan buufachuu nan danda'aa?

Eeyyee; bilisas. Waraqaan gaaffii faayilii tokko, furtuun deebii ibsa isaa waliin immoo faayilii biraa ti; kanaaf qormaata dursitanii yaaluu dandeessu. Maxxansaa, yookiin yeroo daataan hin jirre irra deebiif bilbila keessan irratti kaa'adhaa.

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