Reaction Rate Laws

Increase in temperature of the reactants can do one of the following

• Slow collision frequency

• Allow less effective collision between the particles

• Cause particles to lose speed

• Increase collision between the particles thus increasing the rate.

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Why does a higher temperature increase the rate of a reaction?

• it increases both the frequency and energy of particle collisions

• it only increases the frequency of particle collisions

• it only increases the energy of particle collisions

• it reduces the activation energy of the reaction

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Products will form faster if____________

• the particle size of the reactants are larger.

• temperature is decreased.

• concentration of the reactants are increased.

• the reaction is not stirred.

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The major theory of reaction rate is called

• Collision theory

• Crash theory

• Newton's laws

• Thermodynamics

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which factor that affect reaction rate is represented?

• Temperature

• Catalyst

• Surface Area

• Concentration

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Which of the following factors does NOT affect the rate of a chemical reaction?

• Concentration of reactants

• Presence of a catalyst

• Color of reactants

• Temperature

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According to the collision theory, what is necessary for a reaction to occur?

• Particles must collide with sufficient energy and proper orientation

• Particles must collide with any energy

• Particles must collide with low energy

• Particles must collide without any orientation

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In a first-order reaction, how does the rate of reaction change if the concentration of the reactant is doubled?

• The rate doubles

• The rate quadruples

• The rate remains the same

• The rate halves

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