A gas has a density X at standard temperature and pressure.What is the new density when the absolute temperature is doubled and the pressure increased by a factor of 3?
A)(2/3)X
B)(4/3)X
C)(3/4)X
D)(6)X
E)(3/2)X

Question

Quizplus · Accepted Answer

The density of a gas is directly proportional to its pressure and inversely proportional to its temperature (in Kelvin). When the temperature is doubled (T -> 2T) and the pressure is tripled (P -> 3P), the new density is (3P)/(2T) times the original density. Since the original density is proportional to P/T, the new density is (3/2) times the original density, hence (3/2)X.

A Gas Has a Density X at Standard Temperature and Pressure.What