Think of a pool-table set up as a model (analogy) for gas

Think of a pool-table set up as a model (analogy) for gas behavior:

a. How would you use the pool balls to demonstate the effect of an increase in the temperature of a gas sample?

b. How would you use this model to demonstrate the effect of adding more gas molecules to the sample?

c. In what ways is the pool-table model unsuccessful and misleading in modeling gas behavior?

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