A neon atom has a larger atomic number than a helium atom.At the same temperature and pressure,how does the speed of sound in helium gas compare to the speed of sound in neon gas?
A)greater in neon than in helium
B)greater in helium than in neon
C)the same in both gases
D)depends on the frequency of the sound generated

Question

Quizplus · Accepted Answer

The speed of sound in a gas is inversely related to the square root of the molar mass of the gas. Helium has a lower molar mass than neon, so the speed of sound is greater in helium than in neon at the same temperature and pressure.

A Neon Atom Has a Larger Atomic Number Than a Helium