316pts Specify the errors associated with each of the follow

3.(16pts) Specify the errors associated with each of the following incorrect statements Statement What is wrong? If the temperature, expressed in oC doubles, the rate of the reaction always doubles. 2. A catalyst increases the collision frequency of the reactants 3. The molecularity of an elementary reaction is proportional to the complexity of the reactants 4. If reactant molecules collide with an energy greater than the activation energy, they change to product molecules

Solution

1.If temperature doubles, rate of reaction will increase, but with how much fold cannot be determined precisely. Literature suggest foe every 10°C increase rate of reaction doubles.

2.Catalyst lowers the activation energy of the reaction

3.The molecularity of elementary reaction represents the number of molecules colliding to form a product, which is not proportional to complexity of the reaction

4.But the collision can be possible between same type of molecule, which will not necessarily lead to product.