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IB HL CHEM - Arrhenius Equation

Authored by Philip BIGGS

Science

11th Grade

NGSS covered

Used 3+ times

IB HL CHEM - Arrhenius Equation
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is A. Click all that apply

Collision factor

Frequency of collisions

Arrhenius factor

Pre-exponential factor

Tags

NGSS.HS-PS1-5

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the units of temperature in the Arrhenius equation ?

Celsius

Fahrenheit

Centigrade

Kelvin

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Increasing the temperature by 10 degrees increases the rate by approximately what factor ?

10

1

2

3

Tags

NGSS.HS-PS1-5

4.

MULTIPLE CHOICE QUESTION

15 mins • 5 pts

+38.8 kJ mol-1

+38.8 J mol-1 K-1

+ 562 J mol-1

+ 562 J mol-1 K-1

Answer explanation

B uses the incorrect units for activation energy, as does D.

C has divided the gradient by R (as has D)

A is the only possible answer.

Tags

NGSS.HS-PS1-5

5.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

What can be deduced from the position of the activation energy on a Maxwell-Boltzmann distribution curve?

Number of particles in the rate determining step

Number of successful collisions per second

Order of reaction

Proportion of particles with sufficient energy to react

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

What does the Arrhenius Equation primarily describe?

The change in reaction rate with temperature

The proportion of molecules with energy equal to activation energy

The energy required to start a reaction

The effect of catalysts on reaction rate

Tags

NGSS.HS-PS1-5

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

5.80 s-1

0.580 s-1

850 s-1

8.50 s-1

Tags

NGSS.HS-PS1-5

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