Temperature and Activation Energy (HSC SSCE Chemistry): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What does activation energy () represent?
What does activation energy () represent?
Min. energy hurdle to transform into products
How is activation energy determined?
How is activation energy determined?
Measuring reaction rates at various temps
Which reaction shows the steepest rate increase with temperature?
Which reaction shows the steepest rate increase with temperature?
kJ/mol
How do reactions with higher respond to temperature increases?
How do reactions with higher respond to temperature increases?
More dramatically than lower reactions
What happens when colliding particles lack sufficient energy?
What happens when colliding particles lack sufficient energy?
They bounce apart as unreacted reactants
How does a taller energy barrier affect reaction rate?
How does a taller energy barrier affect reaction rate?
Results in fewer successful reactions
Why does higher temperature speed up reactions?
Why does higher temperature speed up reactions?
More particles have energy exceeding
Which reactions are particularly sensitive to temperature?
Which reactions are particularly sensitive to temperature?
Those with high activation energies
What two conditions must be met for successful collisions?
What two conditions must be met for successful collisions?
Enough energy and proper orientation
At a given temperature, what fraction of collisions can overcome ?
At a given temperature, what fraction of collisions can overcome ?
Only a fraction of colliding particles