A sealed gas cylinder is left outside on a hot, sunny day.
What happens to the average speed of the molecules and to the pressure of the gas in the cylinder as the temperature rises?
1 )
average speed of the gas molecules:falls / gas pressure:falls
2 )
average speed of the gas molecules:falls / gas pressure:rises
3 )
average speed of the gas molecules:rises / gas pressure:falls
average speed of the gas molecules:rises / gas pressure:rises
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