7.2.1 Factors Affecting the Rate of Reaction

CHEM1004010
Which of the following properties of a reactant will give effect to the rate of a reaction?

Which of the following factors will affect the rate of reaction that involve gases as a reactant?

In a chemical reaction, some granules of zinc react with dilute hydrochloric acid to produce salt and hydrogen gas. The release of hydrogen gas can be faster if

Hydrogen peroxide solution is decomposed by using manganese (IV) oxide as catalyst. Three experiments were carried out using a fixed amount of manganese (IV) oxide. The results are shown in the graph. The solutions used were :

(a) 25 cm³ of 2.0 mol/dm³ hydrogen peroxide;
(b) 50 cm³ of 1.0 mol/dm³ hydrogen peroxide;
(c) 50 cm³ of 2.0 mol/dm³ hydrogen peroxide;

Which curve did each solution pro-duce?

The equation below shows a reaction to produce hydrogen gas.

3H₂SO₄ + 2Al → Al₂(SO₄)₃ + 3H₂

Which of the following will increase the rate of the reaction?

In a reaction between iron chips and nitric acid, the rate of reaction decreases with time. This is because

2H₂O₂ → 2H₂O + O₂

The equation above show the decomposition of hydrogen peroxide. The rate of this reaction decreases over time because

2 experiments are carried out to study the rate of reaction between calcium carbonate and nitric acid to produce carbon dioxide gas. The quantity of reactant used are as follow:

Experiment 1: Excess calcium carbonate and 25 cm³ of 1 mol/dm³ nitric acid
Experiment 2: Excess calcium carbonate and 50 cm³ of 0.5 mol/dm³ nitric acid

Which of the following graphs represents the 2 experiments

Which of the following are the characteristics of a catalyst?

The figure shows the energy profile diagram for the decomposition reaction of Potassium chlorate(V). Which of the following is true about curve P and Q?

Which of the following acid produces the highest rate of reaction when reacts with some limestone?