Evidence for the Kinetic Theory of Matter (Leaving Cert Chemistry): Quizzes
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Practise the questions
11 questions from this quiz
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Practise the questions
11 questions from this quiz
What does the Kinetic Theory of Matter state?
What does the Kinetic Theory of Matter state?
All matter is tiny particles in motion
Who discovered Brownian motion and when?
Who discovered Brownian motion and when?
Robert Brown in 1827
What pattern of movement did Brown observe in pollen grains suspended in water?
What pattern of movement did Brown observe in pollen grains suspended in water?
Random, zig-zag pattern
What causes the random movement of pollen grains in Brownian motion?
What causes the random movement of pollen grains in Brownian motion?
Water molecules colliding with them
Why do the collisions in Brownian motion produce unpredictable movement?
Why do the collisions in Brownian motion produce unpredictable movement?
Collisions occur randomly from all sides
What is diffusion?
What is diffusion?
Particles spreading high to low conc.
Which two gases are used in the classic diffusion experiment?
Which two gases are used in the classic diffusion experiment?
and
What white solid forms when ammonia and hydrogen chloride meet?
What white solid forms when ammonia and hydrogen chloride meet?
Ammonium chloride
Where does the white ring form in the diffusion experiment?
Where does the white ring form in the diffusion experiment?
Closer to the hydrogen chloride end
Why does ammonia travel further than hydrogen chloride in the same time?
Why does ammonia travel further than hydrogen chloride in the same time?
It is lighter so moves faster
How does diffusion support the kinetic theory?
How does diffusion support the kinetic theory?
Shows lighter particles move faster