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Chemical Equilibrium /
Quiz 4

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MDCAT Practice Test - Practice Test - Chemistry - Chemical Equilibrium Quiz

Attempt 10 MCQs on MDCAT Practice Test - Practice Test - Chemistry - Chemical Equilibrium | Quiz 4

31. How does increasing temperature affect an endothermic reaction?

Right
Left
No shift
Reaction stops

32. How does increasing temperature affect an exothermic reaction?

Left
Right
No shift
Reaction stops

33. What effect does a catalyst have on equilibrium position?

No shift
Shifts right
Shifts left
Reaction becomes irreversible

34. Which direction does temperature increase shift this exothermic reaction?

Left
Right
No change
Depends on pressure

35. Which direction does temperature increase shift H2 + I2 <=> 2HI?

Right
Left
No change
Cannot predict

36. What conditions are used in the Haber process?

High pressure, moderate temperature
Low pressure, high temperature
High pressure, very low temperature
Low pressure, low temperature

37. Which changes affect equilibrium according to Le Chatelier?

Concentration, pressure, temperature
Only concentration
Only temperature
Only pressure

38. What is the effect of increasing pressure on PCl5 dissociation?

Left
Right
No shift
Reaction stops

39. What is the effect of adding argon gas at constant volume to an equilibrium mixture?

No shift
Shifts right
Shifts left
Depends on gas

40. How does cooling affect the equilibrium 2NO2 (brown) <=> N2O4 (colorless)?

Right
Left
No shift
Depends on pressure

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Instructions: Select one answer per question. After submitting, you will see your score, correct answers, and explanations.

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