Three identical flasks contain three different gases at standard temperature and pressure.Flask A contains CH₄,flask B contains CO₂,flask C contains N₂.Which flask contains the largest number of molecules? A)flask A B)flask B C)flask C D)All flasks contain the same number of molecules.

Question

Quizplus · Accepted Answer

The ideal gas law, PV = nRT, can be rearranged to solve for the number of molecules (or moles) present:

n = PV/RT

Since all three flasks are at the same temperature (standard temperature) and pressure (standard pressure), the equation simplifies to:

n = V/22.4

where V is the volume of each flask in liters.

Since all three flasks are identical, they have the same volume. Therefore, they contain the same number of molecules, and the answer is D, "All flasks contain the same number of molecules."

Three Identical Flasks Contain Three Different Gases at Standard Temperature