N molecules of a monatomic gas A are mixed with the same number of molecules of a diatomic gas B in a container, and the mixture is held at a constant temperature T (which is about equal to room temperature). The molecules of gas A have mass mA, and the molecules of gas B have mass mB > mA Which gas has In each case, choose from one of the four answers below.

the greater value of



A. The quantity is greater for gas A.

B. The quantity is greater for gas B.

C. The quantity is the same for both gases.

D. One does not know enough to compare the quantities.




A. The quantity is greater for gas A.

Physics & Space Science

You might also like to view...

The rigid body shown rotates about an axis through its center of mass and perpendicular to the paper. If M = 2.0 kg and L = 80 cm, what is the kinetic energy of this object when its angular speed about this axis is equal to 5.0 rad/s? Neglect the mass of the connecting rod and treat the masses as particles.

A. 18 J B. 15 J C. 12 J D. 23 J E. 26 J

Physics & Space Science

The intensity of solar radiation near the earth is 1.4 kW/m2. What magnitude force does this radiation exert when it strikes at right angles to a 5.0-m2 perfectly reflecting solar panel of an artificial satellite orbiting the earth?

(c = 3.0 × 108 m/s)

Physics & Space Science

The root-mean-square speed (thermal speed) of a certain sample of carbon dioxide molecules, with a molecular weight of 44 g/mol, is 396 m/s

What is the root-mean-square speed (thermal speed) of water vapor molecules, with a molecular weight of 18 g/mol, at the same temperature? A) 253 m/s B) 396 m/s C) 421 m/s D) 506 m/s E) 619 m/s

Physics & Space Science

Daisy weighs 120 N and carries Trixie who weighs 40 N on her back. The support force on Daisy's feet is

A) 40 N. B) 120 N. C) 160 N. D) more than 160 N.

Physics & Space Science