3.x Collision Theory (GCSE Chemistry)

The following is a GCSE Chemistry test covering '3.x Collision Theory'

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Question 1

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According to collision theory, to double the rate of reaction you would typically:

What change to particle collisions occurs when reactant particles are heated?

Collision theory explains which requirement regarding reactant orientation?

Collision theory states that when concentration increases:

What happens to collision frequency when concentration of reactants decreases, according to collision theory?

Why might a reaction rate decrease when pressure of gaseous reactants is lowered?

Reaction rates increase if reactants are in powder form rather than lumps because powders have:

What must particles possess in order to successfully react upon collision?

With regards to collision theory, stirring a solution:

According to collision theory, ineffective collisions are due to:

Why does increasing temperature generally speed up a chemical reaction?

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