Chemical Equilibrium — Chemistry Grade 11 · High School — Question Bank

Question 1 of 20Easy

Chemical equilibrium is dynamic, meaning that ...

Question 2 of 20Easy

The equilibrium constant $K_{c}$ for $H X_{2} + I X_{2} 2 HI$ is ...

Question 3 of 20Easy

According to Le Chatelier's principle, if the reactant concentration is increased, the equilibrium shifts toward ...

Question 4 of 20Easy

An exothermic reaction is heated. The equilibrium shifts toward ...

Question 5 of 20Easy

Chemical equilibrium can only occur in a ... system.

Question 6 of 20Easy

The value of the equilibrium constant depends on ...

Question 7 of 20Medium

The equilibrium constant $K_{c}$ for $N X_{2} + 3 H X_{2} 2 NH X_{3}$ is ...

Question 8 of 20Medium

At equilibrium $N X_{2} + 3 H X_{2} 2 NH X_{3}$ , [N2] = 0.5 M, [H2] = 0.5 M, and [NH3] = 0.25 M. The value of $K_{c}$ is ...

Question 9 of 20Medium

If the pressure is increased, the equilibrium $N X_{2} + 3 H X_{2} 2 NH X_{3}$ shifts ...

Question 10 of 20Medium

Adding a catalyst to an equilibrium reaction ...

Question 11 of 20Medium

For $N X_{2} + 3 H X_{2} 2 NH X_{3}$ with $K_{c} = 4$ , the value of $K$ for $2 NH X_{3} N X_{2} + 3 H X_{2}$ is ...

Question 12 of 20Medium

If the reaction quotient $Q < K$ , the reaction will ...

Question 13 of 20Medium

If a product is removed from an equilibrium system, the equilibrium shifts ...

Question 14 of 20Medium

In $2 SO X_{2} + O X_{2} 2 SO X_{3}$ , if the container volume is increased (pressure drops), the equilibrium shifts ...

Question 15 of 20Hard

In $H X_{2} + I X_{2} 2 HI$ , initially [H2] = [I2] = 1 M. If at equilibrium [HI] = 1.2 M, the value of $K_{c}$ is ...

Question 16 of 20Hard

1 mole of $PCl X_{5}$ decomposes as $PCl X_{5} PCl X_{3} + Cl X_{2}$ . If 0.6 mol $PCl X_{5}$ remains at equilibrium, the degree of dissociation is ...

Question 17 of 20Hard

Given $K_{1}$ for $N X_{2} + O X_{2} 2 NO$ is 2 and $K_{2}$ for $2 NO + O X_{2} 2 NO X_{2}$ is 3, the value of $K$ for $N X_{2} + 2 O X_{2} 2 NO X_{2}$ is ...

Question 18 of 20Hard

If $K_{c} = 4$ and the reaction quotient $Q = 8$ , the reaction shifts ...

Question 19 of 20Hard

In $N X_{2} + 3 H X_{2} 2 NH X_{3}$ , if the volume is increased at constant temperature, then ...

Question 20 of 20Hard

For $H X_{2} + I X_{2} 2 HI$ , $K_{c} = 64$ . If initially [H2] = [I2] = 0.5 M, the equilibrium concentration of HI is ...