What is the average velocity of atoms in 1.50 mol of neon (a monatomic gas) at 278 K? For m, use 0.01500 kg. Remember that R = 8.31 J / (molK).

A. 9610 m/s

B. 832 m/s

C. 6.93 m/s

D. 693,000 m/s

Hello there.

What is the average velocity of atoms in 1.50 mol of neon (a monatomic gas) at 278 K? For m, use 0.01500 kg. Remember that R = 8.31 J / (molK).

C. 6.93 m/s

Gas velocity is called the root mean squared. It is defined as the square root of the average velocity-squared of the molecules in a gas. This is the equation you need to use:

v = (3RT) / M

v = (3) 8.31 (278) / 0.01500

v = 6.93 m/s