A 050 $m ^ { 3 }$ Gas Tank Holds 3 $350 \mathrm {~K} .$

Multiple Choice

A 0.50 $m ^ { 3 }$ gas tank holds 3.0 moles of ideal diatomic nitrogen gas at a temperature of $350 \mathrm {~K} .$ The atomic mass of nitrogen is $14.0 \mathrm {~g} / \mathrm { mol }$ . What is the rms speed of the molecules? (The Boltzmann constant is 1.38 × 10^-23 J/K, N_A = 6.022 × 10²³ molecules/mol.)

A) 560
B) 790
C) 390
D) 21
E) 97