Chemistry 1B Quiz Buster 3

Which of the following factors does not influence the rate of reaction?

• Reactant Concentration

• Temperature

• Physical State of Products

• Physical State of Reactants

Which of the following statements are incorrect regarding Le Chatelier’s principle? 

• If a closed system in equilibrium has its pressure increased, the equilibrium will favour the side of the chemical equation with the most molecules.

• If a system in equilibrium has part of its products removed, the equilibrium will shift towards the products. 

• If the temperature is increased during an exothermic reaction in equilibrium, the reaction will go on to produce more reactants 

• None of the above

• 1st Order

• 2nd Order

• 3rd Order

• Must be determined experimentally

The rate determining step of a chemical reaction can be best described as

• The final step or elementary reaction

• . The step impacted by the addition of the catalyst

• The first step or elementary reaction

• The slowest step or elementary reaction

Water reacts with carbon dioxide to produce bicarbonate. You start with 0.5 moles of both reactants and at equilibrium you have 0.4 moles of both. Would the reaction favour the products or reactants? H₂O + CO₂ → H₂CO₃

• Products

• Reactants

• Neither

• There is not a information to tell

Which of the following is false about a catalyst?

• A catalyst changes the rate of reaction while undergoing a permanent change.

• The action caused by a catalyst is called catalysis.

• A heterogenous catalyst exists in a separate phase to the reactants.

• A homogenous catalyst exists in the same phase as the reactants.

• 25

• 89

• 41

• 0.112

If the equilibrium constant is greater than 1...

• There are more reactants than products.

• There a more products than reactants.

• There are equal amounts of products and reactants.

• The reaction is spontaneous.

The following data is from the reaction 2R + S → T + U. What is the rate law for this?

• Rate = k([R]²+[S])

• Rate = k[2R][S]

• Rate = k[R]²[S]²

• Rate = k[R]²[S]