Reaction Rate

Question 1

Which topic is commonly used to explain activation energy and how chemical reactions happen?

Revolt · Accepted Answer

collision theory

Question 2

Which will cause an increase in the reaction rate between molecules?

Revolt · Accepted Answer

Molecules collide more frequently.

Question 3

Which term refers to the speed at which reactants are converted into products?

Revolt · Accepted Answer

reaction rate

Question 4

Consider the energy diagram below.xn.Which line indicates a higher reaction rate?

Revolt · Accepted Answer

B because it has a lower activation energy.

Question 5

Which best explains why sawdust burns more quickly than a block of wood of equal mass under the same conditions?

Revolt · Accepted Answer

More molecules in the sawdust can collide with oxygen molecules.

Question 6

Consider the reaction below.C2H4(g) + H2(g) C2H6(g)Which change would likely cause the greatest increase in the rate of the reaction?

Revolt · Accepted Answer

increase temperature and increase pressure

Question 7

Which applies to the collision theory?

Revolt · Accepted Answer

Particles need to collide in order to react.

Question 8

Ben observes how quickly some dry wood is burning in a campfire. Which term best relates to Ben’s observation?

Revolt · Accepted Answer

reaction rate

Question 9

An increase in temperature affects the reaction rate by

Revolt · Accepted Answer

increasing the number of molecules that have sufficient kinetic energy to react.

Question 10

Consider the reaction below.Which is most likely the effect to the forward reaction if there is an increase in pressure of the system?

Revolt · Accepted Answer

The reaction rate decreases.

Reaction Rate Answers