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Question: A box of H2 gas is at STP (0 ?C and 101.3 kPa).
a. What is the pressure of the gas in
i. Torr
ii. pascals
iii. atmospheres
b. What is the root-mean-square velocity of the H2 molecules?
c. The temperature of the gas of H2 is tripled and the number of molecules is halved. All else remains the same.
i. What is the new pressure in the box?
ii. How does each molecule's average kinetic energy change from its value at STP?
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