Reaction Rate

Question 1

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

Revolt · Accepted Answer

reaction rate

Question 2

A change in which factor will affect the rate of reaction only when gases are involved?

Revolt · Accepted Answer

pressure

Question 3

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 4

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

Revolt · Accepted Answer

Molecules collide more frequently.

Question 5

The diagram below shows the movement of particles.What does this piece of evidence best support?

Revolt · Accepted Answer

the collision theory

Question 6

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.

Question 7

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 8

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 9

Which applies to the collision theory?

Revolt · Accepted Answer

Particles need to collide in order to react.

Question 10

A solid reactant is placed into a beaker of a warm water. The liquid vigorously bubbles as the solid dissolves into the solution. What will most likely happen if the temperature of the liquid is slightly reduced?

Revolt · Accepted Answer

Fewer bubbles will be produced because of fewer collisions of reactant molecules.

Reaction Rate Answers

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