Written by Irene Chang
Given: At STP, gaseous O molecules are placed in a rigid 22.4 L flask at 1 atm and 25.0 Celsius.
a. How many moles of O2 are in the flask?
b. If all the oxygen molecules were to react and form O2, what would be the resulting pressure? Which law does this involve?
c. Would the flask containing O2 or O have a higher RMS velocity?
d. Would the flask containing O2 or O have a higher kinetic energy?
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A.
B. The number of particles is halved and the mass of each particle doubles.
C.
D. Kinetic energy is only dependent on temperature, and if they’re both at the same temperature, then they will both have the same kinetic energy.
