Each of three identical 15.0-L gas cylinders contains 7.50 mol of gas at 295 K.Cylinder A contains HCN,cylinder B contains NO₂,and cylinder C contains O₃.According to the kinetic molecular theory,which gas has the highest average kinetic energy? A)HCN B)NO₂ C)O₃ D)All have identical average kinetic energies

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Quizplus · Accepted Answer

According to the kinetic molecular theory, the average kinetic energy of a gas is directly proportional to its temperature and inversely proportional to its molar mass. As all three gases are at the same temperature and have the same molar mass, they will have the same average kinetic energy. Therefore, the correct answer is D) All have identical average kinetic energies.

Each of Three Identical 15