Chemical Equilibrium — Important Questions
Maharashtra Board · Class 11 · Chemistry
45 important questions from Chemical Equilibrium for Maharashtra Board Class 11 Chemistry, with answers. Includes multiple choice and multiple correct.
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Important Questions from Chemical Equilibrium
Which factors affect the position of equilibrium?
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Concentration of reactants, Temperature, Pressure (for gaseous reactions), Volume (for gaseous reactions)
Concentration, temperature, pressure, and volume can shift equilibrium position. A catalyst only affects the rate of reaching equilibrium, not the position.
In the equilibrium H₂O(l) ⇌ H₂O(g), what represents this type of equilibrium?
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Heterogeneous equilibrium
This is heterogeneous equilibrium because it involves different phases - liquid water and water vapor (gas phase).
For the reaction PCl₅(g) ⇌ PCl₃(g) + Cl₂(g), if pressure is increased, equilibrium will:
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Shift to the left
Increased pressure favors the side with fewer gas molecules. Left side has 1 molecule, right side has 2 molecules, so equilibrium shifts left.
The relationship between Kp and Kc is given by:
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Kp = Kc(RT)^Δn
Kp and Kc are related by Kp = Kc(RT)^Δn, where Δn is the difference in number of moles of gaseous products and reactants.
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