Chemical Kinetics

If the rate of the reaction is equal to the rate constant, then the order of the reaction is

• 3

• 0

• 1

• 2

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

The unit of rate and rate constant are same for ______order reaction

• zero

• one

• two

• three

Tags

NGSS.HS-PS1-5

What is the parameter to measure the rate or speed of a reaction beside time?

• Change in volume
• Change in consentration
• Change in pressure
• Change in temperature

Tags

NGSS.HS-PS1-5

What is the energy needed for reactant particles to change into products? 

• Potential
• Kinetic
• Activation
• Conversion

Tags

NGSS.HS-PS1-4

A+B →C+D    ΔH = -202kj/mol
How can above reaction be classified in terms of energy exchange during chemical change? 

• Combination reaction
• Endothermic reaction
• Transthermal reaction
• Exothermic reaction

Tags

NGSS.HS-PS1-4

Limestone chunks are reaction with hydrochloric acid solution at constant temperature with average speed. If we crash the chunks of limestone into powder how would speed of reaction change?

• Reaction speeds up
• Reaction does not change
• Reaction slows down
• Reaction stops

Tags

NGSS.HS-PS1-5

What is explaining behaviors of a system at equilibrium?

• Avagadro's Law
• Boyles Law 
• Le Chatelier Principle
• Collusion Theory

Tags

NGSS.HS-PS1-6

Which of the following is NOT a factor affecting reaction rate?

• temperature
• catalysts
• particle size
• polarity

Tags

NGSS.HS-PS1-5

Reaction rate means...

• amount of product formed
• speed of reaction
• concentration of reacting particles
• combining reactants with products

Tags

NGSS.HS-PS1-5