A sealed container holds 0.020 moles of nitrogen (N2 ) gas at a ...

[xclash]

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/molK = 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) 10  10-21 J.
  C) 6.0  10-21 J.
  D) 12  10-21 J.
  E) 8.0  10-21 J.

Question 2

An electron is in an infinite square well (a box) that is 8.9 nm wide.
 
  What is the ground state energy of the electron? (h = 6.626  10-34 J  s, mel = 9.11  10-31 kg, 1 eV = 1.60  10-19)
  A) 0.0048 eV
  B) 0.0057 eV
  C) 0.0066 eV
  D) 0.0076 eV
  E) 0.0085 eV

[zenzy]

Answer to Question 1

C

Answer to Question 2

A

[xclash]

Thank you!

[zenzy]

Always glad to help...