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A sample of an ideal gas is in a fixed volume container at pressure P-by heating...

A sample of an ideal gas is in a fixed volume container at pressure P-by heating the gas, the average speed of molecules in the gas triples. What is the new pressure of the gas?

a. P/9 b. P/3 c. 3P d. 9P e. depends on the number density of the gas

The answer is 9P

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