A flask contains a mixture of argon and neon gases at a ...

[londonang]

A flask contains a mixture of argon and neon gases at a stabilized temperature. The root-mean-square speed of the argon gas is determined to be 1.21 km/s.
 
  What is the root-mean-square speed of the neon gas? The atomic mass of argon is 39.95 g/mol, and that of neon is 20.18 g/mol.

Question 2

If the wavelength of a photon in vacuum is the same as the de Broglie wavelength of an electron, which one is traveling faster through space?
 
  A) The electron because it has more mass.
  B) The photon because photons always travel through space faster than electrons.
  C) They both have the same speed.

[Swizqar]

Answer to Question 1

1700 m/s

Answer to Question 2

B

[londonang]

TYSM

[patma1981]

Gracias!