The root mean square speed of a gas molecule is greater than the average speed, because the former gives a greater weight to

a. lighter molecules.
b. heavier molecules.
c. lower speeds.
d. higher speeds.
e. more probable speeds.


d

Physics & Space Science

You might also like to view...

Determine the excess temperature at one-half of the maximum heat flux for the fluid- surface combinations in Problem 9.3.

GIVEN
? Nucleate pool boiling on a clean surface
FIND
The excess temperature (?Tx) at one half of the maximum heat flux for (a) water at 10 kPa on brass (b) water at 1 MPa on brass
PROPERTIES AND CONSTANTS
From Appendix 2, Table 13, for water Table 9.2 for surface tension

From Table 9.1, the coefficient, Csf, for water on brass = 0.0060

Physics & Space Science

At closest approach Venus is about how far from Earth?

A) 0.7 AU B) 0.5 AU C) 0.4 AU D) 0.3 AU E) 0.1 AU

Physics & Space Science

The reference point for longitude is

What will be an ideal response?

Physics & Space Science

Light is emitted by hydrogen atoms in the visible range for a hydrogen atom. Its wavelength is 656 nm. What value of n is associated with the light? (RH = 1.097 × 10^7 m-1)

a. 5 b. 2 c. 4 d. 3 e. 6

Physics & Space Science