Rate Laws Pop Quiz

Which trials would be used to measure the rate exponent for A?

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

Tags

NGSS.HS-PS1-5

Which trials would be used to find the rate exponent for B

• trials 1 and 2

• trials 1 and 3

• trials 2 and 3

Tags

NGSS.HS-PS1-5

What is the rate exponent for A?

• 0
• 1
• 2

Tags

NGSS.HS-PS1-5

What is the rate exponent for B?

• 0
• 1
• 2

Tags

NGSS.HS-PS1-5

Which trial do you insert into the rate law to find k (rate = k [A]^m[B]ⁿ)?

• trial 1
• trial 2
• trial 3
• any trial will work

Tags

NGSS.HS-PS1-5

What does a k value tell you?

• the specific rate of a reaction given certain concentrations
• The generalized rate of a reaction regardless of concentrations

Tags

NGSS.HS-PS1-5

For a reaction 2A + B --> 2C, with the rate equation:

Rate = k [A]² [B]

• The order with respect to A is 1 and the order overall is 1

• The order with respect to A is 2 and the order overall is 2

• The order with respect to A is 2 and the order overall is 3

• The order with respect to B is 2 and the order overall is 3

• The order with respect to B is 2 and the order overall is 2

Tags

NGSS.HS-PS1-5

Given the following information.

• Rate = k[NH₄⁺][NO₂^-]

• Rate = k[NH₄⁺]²[NO₂^-]²

• Rate = k[NH₄⁺]²[NO₂^-]

• Rate = k[NH₄⁺][NO₂^-]²

• none of the above

Tags

NGSS.HS-PS1-5

What are the units of k for the rate law: Rate = k[A][B]², when the concentration unit is mol/L?

• s^-1

• s

• L mol^-1 s^-1 or M^-1s^-1

• L² mol^-2 s^-1 or M^-2s^-1

• L² s² mol^-2 or M²s²