Rate Constant Chemistry

A reaction has the rate law: Rate = k [A][B].
What is the order of reaction with respect to A?

• 1st
• 2nd
• 3rd
• 4th

A reaction has the rate law: Rate = k [A][B].
What is the overall order of reaction?

• 1st
• 2nd
• 3rd
• 4th

Tags

NGSS.HS-PS1-5

A possible rate law for a third overall order of a reaction is __________________

• Rate = k [A]²[B]²
• Rate = k [A][B]³
• Rate = k [A]³ [B]
• Rate = k [A]²[B]

Tags

NGSS.HS-PS1-5

Write the rate law for the reaction aA → bB if the reaction is third order in A. [B] is not part of the rate law.

• Rate =k[A]
• Rate =3[A]
• Rate =k[3A]
• Rate =k[A]³

Tags

NGSS.HS-PS1-5

A reaction has the rate law: Rate = k [A][B].
What will happen to the rate of reaction if the concentration of A is doubled and the concentration of B is tripled?

• increases by a factor of 3
• increases by a factor of 4
• increases by a factor of 5
• increases by a factor of 6

Tags

NGSS.HS-PS1-5

The rate law for the reaction 2NO_(g) + O_2(g) → 2NO_2(g) is first order in O₂ and third order overall. What is the rate law for the reaction?

• Rate = k [NO]²[O₂]²
• Rate = k [NO]¹[O₂]²
• Rate = k [NO]²[O₂]¹
• Rate = k [2NO]²[O₂]¹

Tags

NGSS.HS-PS1-5

What is the rate of reaction?

• How fast a reaction is 
• How big a reaction is
• How loud a reaction is
• How much gas a reaction produces

Tags

NGSS.HS-PS1-5

Which two trials would you use to find the rate exponent for A?

• trials 1 and 2
• trials 1 and 3
• trials 2 and 3

Tags

NGSS.HS-PS1-5

What two trials would you use to find the rate exponent for B?

• trials 1 and 2
• trials 1 and 3
• trails 2 and 3

Tags

NGSS.HS-PS1-5

What is the rate exponent for A?

• 0
• 1
• 2

Tags

NGSS.HS-PS1-5