Collision Theory (HSC SSCE Chemistry): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
ShowHide
Practise the questions
10 questions from this quiz
What is the energy barrier that reactants must overcome to form products called?
What is the energy barrier that reactants must overcome to form products called?
Activation energy
What happens to reactants with insufficient energy in the hill analogy?
What happens to reactants with insufficient energy in the hill analogy?
They climb partway up then fall back
How many conditions must be met for a chemical reaction to occur according to collision theory?
How many conditions must be met for a chemical reaction to occur according to collision theory?
Three
What happens if reactants collide with sufficient energy but incorrect orientation?
What happens if reactants collide with sufficient energy but incorrect orientation?
No reaction occurs
Which factors affect the rate of reaction in the quantitative expression?
Which factors affect the rate of reaction in the quantitative expression?
Collisions, energy fraction, orientation
Why does increasing concentration increase the reaction rate?
Why does increasing concentration increase the reaction rate?
More particles available to collide
What is average kinetic energy of gas particles proportional to?
What is average kinetic energy of gas particles proportional to?
Absolute temperature
At 500 K compared to 300 K, what happens to the fraction of molecules above ?
At 500 K compared to 300 K, what happens to the fraction of molecules above ?
It becomes much larger
Why must molecules be correctly orientated for a reaction to occur?
Why must molecules be correctly orientated for a reaction to occur?
So bonds can break and new bonds can form
In the CO + NO₂ reaction, what makes a collision successful?
In the CO + NO₂ reaction, what makes a collision successful?
CO collides with oxygen atom of NO₂