For ideal gases we assume intermolecular interactions are negligible.
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What's the formula for mean energy?
Mean energy = 3/2 kT = kT
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What do E/kT ranges show us about the speed of processes?
kT is average theraml energy. When E/kT is 15-30 this is an ideal rate, over 30 it's too slow, and below 15 it's too fast.
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What's the formula for the number of particles as energy increases?
N=N0*e^-E/kT where N0 is the number of particles we start with, exponential graph.
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What is E?
E is activation energy.
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What are processes requiring activation energy?
Water with heat evaporates, and in the Sun millions of kelvin are needed for nuclear fusion
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What's the formula for mass?
Mass = mols * molar mass
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What happens when water evaporates?
When water gains enough thermal energy for particles to escape, mean energy lowers.
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How does evaporation and flowing occur in water?
Processes rely on thermal agitation. Liquiods flow when particles have enough energy to escape, and liquids evaporate when particles have enough energy to escape the surface.
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How do Van der Waals forces compare to hydrogen and covalent?
Van der Waals require less energy to break so the boltzmann factor increases with temperature more rapidly than hydrogen and covalent bonds.
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Other cards in this set
Card 2
Front
What's the formula for mean energy?
Back
Mean energy = 3/2 kT = kT
Card 3
Front
What do E/kT ranges show us about the speed of processes?
Back
Card 4
Front
What's the formula for the number of particles as energy increases?
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