A sealed container holds 0.020 moles of nitrogen (N2) gas at a pressure of 1.5 atmospheres and a temperature of 290 K. The atomic mass of nitrogen is 14 g/mol
The Boltzmann constant is 1.38 × 10-23 J/K and the ideal gas constant is R = 8.314 J/mol ? K = 0.0821 L ? atm/mol ? K. The average translational kinetic energy of a nitrogen molecule is closest to
A) 4.0 × 10-21 J.
B) 6.0 × 10-21 J.
C) 8.0 × 10-21 J.
D) 10 × 10-21 J.
E) 12 × 10-21 J.
Answer: B
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