Question

A sample of an ideal gas occupies a volume V at pressure P and absolute temperature T. The masss of each molecule is m, then the density of the gas is
A. mKT
B. `(Pm)/(KT)`
C. `(P)/(km)`
D. `(P)/(KT)`

Answer 1

Correct Answer - B
The equation which related the pressure (P), volume (V) and temperature (T) of the given state of an edeal gas is known as ideal gas equation
PV = KTN, where N is the number of molecules
`P((Nm)/(rho))=KTN" "[thereforeV=(m)/(rho)]`
Density of gas, `rho=(p m)/(KT)`