NEET-XI-Physics
exam-2 year:2016
- #131A given sample of an ideal gas occupies a volume
V at a pressure P and absolute temperature T. The
mass of each molecule of the gas is m. Which of
the following gives the density of the gas ?
(1) P/(kTV)
(2) mkT
(3) P/(kT)
(4) Pm/(kT)digAnsr: 4Ans : (4)
Sol.
w
P RT
M
=
(Ideal gas equation)
&implies;
w A
A
PM P (mN )
RT kN T
= = Pm
kT
=