QUIZ (1) - TOPIC 1 : CHEMICAL KINETICS

What letter represents the activation energy?

• A
• B
• C
• D

Tags

NGSS.HS-PS1-4

Which letter corresponds to the activation energy of the forward reaction?

• A
• B
• C
• D

Tags

NGSS.HS-PS1-4

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.

Tags

NGSS.HS-PS1-5

What does NOT happen when the temperature is increased?

• Particles collide more often
• Particles collide with more energy
• Particles move faster
• More particles collide in the correct orientation

Tags

NGSS.HS-PS1-5

Which factors increase the rate of a reaction.

• increasing temperature
• increasing concentration
• increasing surface area
• all of these

Tags

NGSS.HS-PS1-5

Which letter corresponds to the energy of the activated complex?

• A
• C
• D
• E

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-1

Arrhenius equation is

• k = Ae^Ea/RT

• k = Ae^-Ea/RT

• k = Ae^RT/Ea

• k = Ae^-RT/Ea

Tags

NGSS.HS-PS1-5

A catalyst increases the rate of a chemical reaction by

• increasing the activation energy

• decreasing the activation energy

• reacting with reactants

• reacting with products

Tags

NGSS.HS-PS1-5

What is collision theory?

• Molecules must collide in the correct orientation with enough energy to bond.

• Molecules need enough energy to collide and react.

• Atoms constantly collide and react.

• The minimum energy needed for atoms to react

What factors effect rate of reaction?

• Temperature, Concentration, Pressure and Energy

• Surface Area, Concentration, Energy and Pressure

• Temperature, Pressure, Concentration and Surface area

• Pressure, Surface area, Density and Energy

Tags

NGSS.HS-PS1-5