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What is meant by Chemical Equilibrium?
Rate of forward reaction is less than rate of reverse reaction Reaction has stopped Reaction has reached completion Rate of forward reaction equals rate of reverse reaction Rate of forward reaction equals rate of reverse reaction
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No Yes Depends on Temperature
The following equilibrium mixture is set up When solution becomes blue has reaction ceased? Depends on Temperature Depends on Concentrations added No Yes
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Which of the following is not a reversible reaction?
Dehydration of Copper Sulfate Haber Process Solutions of Iron(III) Chloride and Potassium Thiocyanate are mixed Neutralisation Reactions
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Change in Concentration of Reactants
Which of the following stresses does affect the value of Equilibrium Constant Change in Pressure Change in Temperature Change in Concentration of Reactants Adding a Catalyst
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Which of these statements is true about Dynamic Equilibrium
Equilibrium is always at halfway point Position of Equilibrium can be changed Adding a catalyst changes the position of Equilibrium Only irreversible reactions reach dynamic equilibrium
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Moves Equilibrium to Right Moves Equilibrium to Left
Explain the effect of increasing pressure on the following Equilibrium Mixture Moves Equilibrium to Right No Change Moves Equilibrium to side of least number of species Moves Equilibrium to Left
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What is the effect of a catalyst on a reversible reaction?
Increases rate of forward reaction Increases rate of backward reaction Increases rate of both reactions Decreases rate of backward reaction
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Which of the following will not increase the concentration of Sulfur Trioxide?
Increase concentration of Oxygen Increase concentration of Sulfur Dioxide Decrease concentration of Sulfur Dioxide Increase pressure in reaction vessel
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Pressure does not matter
Predict the levels of pressure needed to maximise the yield of ammonia when equilibrium is established. Pressure does not matter Small Pressure High Pressure Low Pressure
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What change, if any, would an increase in pressure have on the value of Kc of the following equilibrium mixture? Increase Decrease Becomes Zero No Change
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Change in Concentration of Reactants
Which of the following does not affect the position of the following Equilibrium Change in Temperature Change in Pressure Change in Concentration of Reactants Change in Concentration of Products
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What is the name of the Process involved in the manufacture of Ammonia from Hydrogen and Nitrogen
Contact Process Haber Process Oxidation Process Cracking Process
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Exothermic Both Endothermic Neither
State, if the red colour fades when a test tube containing the above equilibrium mixture is placed in an ice-water bath, whether the forward reaction is exothermic or endothermic . Endothermic Exothermic Neither Both
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