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You can create printable tests and worksheets from these Grade 12 Kinetics and Equilibrium questions! Select one or more questions using the checkboxes above each question. Then click the add selected questions to a test button before moving to another page.

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Which statement correctly describes a saturated solution?
1. The solvent can dissolve more solute if it is added
2. The solvent cannot contain undissolved solute
3. The dissolved form of the solute is at equilibrium with the undissolved solute
4. The dissolved solute is not at equilibrium with the undissolved solute
Consider the following chemical reaction:

$2CH_3CHO (g) -> CH_4(g) + CO(g)$

What is the correct expression for the rate law of this chemical reaction?
1. $Rate=k[CH_3CHO]^2$
2. $Rate=k[CH_3CHO]$
3. $Rate=k[CH_4] [CO]$
4. $Rate=k[CO]$
For the equilibrium, $A harr 2B + Heat$, the number of A molecules increases if
1. volume is increased
2. temperature is increased
4. concentration of 2B is decreased
Consider the following gas-phase reaction

aA(g) + bB(g) $harr$ cC(g) + dD(g)

What is its partial pressure equilibrium constant expression?
1. $K_p = (p_C)^c (p_D)^d$
2. $K_p = (p_A)^a (p_B)^b$
3. $K_p = (p_C)^c (p_D)^d// (p_A)^a (p_B)^b$
What is meant by an elementary step?
1. Two or more collisions
2. The rate-determining step
3. The most effective collision
4. One collision or vibration
Consider the following chemical reaction

$H_2O_2 (aq) rarr H_2O(l) + (1/2)O_2(g)$
1. Unimolecular reaction
2. Bimolecular reaction
3. Trimolecular reaction
4. Tetramolecular reaction
The rate constant depends upon
1. Temperature
2. Time
3. Initial Concentration
4. None of these
In a reversible chemical reaction, which of the following parameters remains unchanged even with the addition of a catalyst?
1. Equilibrium constant
2. Rate of reaction
3. Percentage yield of reaction
4. Concentration of reactants
Which of the following rate laws is correct for a unimolecular reaction?
1. Rate=k[A]
2. Rate=k[A][B]
3. Rate=k[A][B][C]
4. None of the above
Which of the following chemical reactions is an example of a first-order reaction?
1. $N_2O_5(g) rarr N_2O_4 (g) + (1/2) O_2(g)$
2. $CH_3CHO (g) rarr CH_4(g) + CO(g)$
3. $2HI (g) rarr H_2(g) + I_2(g)$
4. $2NO + Cl_2 rarr2NOCl$