JEE PHYSICS MCQ: THERMAL PROPERTIES OF MATTER

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A sample of an ideal gas occupies a volume

V

at a pressure

P

and absolute temperature

T,

the mass of each molecule is

m.

The expression for the density of gas is (

k = \;

Boltzmaan’s constant)

View answer and explanation

Correct option: D

Pm/kT

Option D (

Pm/kT

) is correct because it is derived from the ideal gas law

PV = nRT

and the definition of density.

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n = \frac{{PV}}{{RT}},n =

{25^0}

{0^0}C

E\,\,W{m^{ - 2}}

\left( {\frac{T}{2}} \right)K