Author Question: When comparing two gases at the same temperature, the gas with a higher molecular weight has more ... (Read 17 times)

sammy · **on:** Jul 29, 2018

When comparing two gases at the same temperature, the gas with a higher molecular weight has more internal energy per mole.

Indicate whether the statement is true or false

Question 2

An electron and a positron annihilate each other, emitting two identical photons in the process. What is the wavelength of these photons? The mass of an electron or positron is 9.11 10-31 kg and h = 6.63 10-34 Js.

A) 1.21 10-12 m
B) 1.73 10-12 m
C) 2.43 10-12 m
D) 3.07 10-12 m
E) 3.46 10-12 m