The Boltzmann Distribution (OCR A-Level Chemistry A): Flashcards
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Practise the cards
10 cards from this deck
Type of collision in Boltzmann distribution
Type of collision in Boltzmann distribution
Elastic (molecules maintain kinetic energy)
Boltzmann distribution
Boltzmann distribution
Pattern showing spread of molecular kinetic energies
What represents on Boltzmann curve
What represents on Boltzmann curve
Activation energy (minimum energy needed for reaction)
Why Boltzmann curve starts at origin
Why Boltzmann curve starts at origin
No molecules have zero kinetic energy
What area under Boltzmann curve represents
What area under Boltzmann curve represents
Total number of molecules in the sample
Effect of higher temp on Boltzmann peak position
Effect of higher temp on Boltzmann peak position
Peak shifts right to higher energy values
Effect of higher temp on Boltzmann peak height
Effect of higher temp on Boltzmann peak height
Peak becomes lower
What a catalyst does
What a catalyst does
Increases reaction rate without being consumed
How catalyst lowers energy barrier
How catalyst lowers energy barrier
Provides alternative pathway with lower activation energy
Catalyst's effect on Boltzmann curve shape
Catalyst's effect on Boltzmann curve shape
No change (shape and position remain the same)