تحصيلي3rates1

Which of the following is true about collision with a correct orientation?

• no reaction can occur

• can occur for the products

• one of the catalysts

• an important role in starting a

  reaction

Which of the following increase the reaction rate?

• decrease in the concentration of one of the reactants

• decrease in the concentration of one of the products

• increase in the concentration of one of the reactants

• increase in the concentration of one of the products

If the reactants and products are in different physical states then the reaction

is in ..

• Homogeneous equilibrium

• Heterogeneous equilibrium

• Stops

• Completion

What is the order of the following chemical reaction? R=k [A]^1∙[B]^2

• First

• Second

• Third

• Fourth

If the reaction order of the substance A is zero then changing its concentration

• Increases the reaction rate

• Decreases the reaction rate

• Stops the reaction

• Doesn’t affect the reaction

Numerical value of the ratio of product concentrations to reactant

concentrations ..

• Reaction order

• Reaction rate constant

• Equilibrium constant

• Interaction reaction