At a pressure of one billionth (10^-9) of atmospheric pressure, there are about 2.7 * 10¹⁰ molecules in one cubic centimeter of a gas. How many molecules is this per cubic meter? A) 2.7 * 10¹⁶ B) 2.7 * 10¹⁴ C) 2.7 * 10¹² D) 2.7 * 10⁸ E) 2.7 *10⁴

Question

Quizplus · Accepted Answer

There are 1,000,000 cubic centimeters in a cubic meter. Therefore, the number of molecules per cubic meter is 2.7 * 10^10 molecules/cm³ * 10^6 cm³/m³ = 2.7 * 10^16 molecules/m³.

At a Pressure of One Billionth (10-9) of Atmospheric Pressure

At a Pressure of One Billionth (10^-9) of Atmospheric Pressure