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Ideal Gas Equation

The density o...

Question

The density of a gas is equal to:
( $P =$ pressure, $V =$ volume, $T =$ temperature, $R =$ gas constant, $n =$ number of moles and $M =$ molecular weight).

n P

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\frac{P M_{w}}{R T}

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\frac{P}{R T}

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\frac{M_{w}}{V}

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Solution

The correct option is B $\frac{P M_{w}}{R T}$
According to ideal gas equation for monoatomic gas,
$P V = R T$
Volume $= \frac{M a s s / M o l e c u l a r w e i g h t}{D e n s i t y (D)}$
$\frac{P M_{w}}{D} = R T$
$D = \frac{P M_{w}}{R T}$

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Similar questions

Q. The density of a gas is equal to:

[(

P

= pressure,

V

= Volume,

T

= temperature,

R

= gas constant,

n

= number of moles and

M_{W}

= molecular weight]

Select the correct formula :

(where k=Boltzmann's constant, R= gas constant, n= moles, r = density, M= molecular weight, p= pressure, T= kelvin temperature, V= volume)

a) k=RN $_{a v}$

b) $r = \frac{n M}{V}$

c) $\frac{p}{r} = \frac{R T}{M}$

d) R=kN $_{a v}$

Q. Given that

P = \frac{R T}{V - b} e^{\frac{- a V}{R T}} .

The dimensional formula of

a

is same as that of:

(

V

=

volume,

T

=

temperature,

P

=

pressure,

R

=

universal gas constant)

Q. The dimensions of '

a

' in Vanderwaal's equation

(P + \frac{a}{V^{2}}) (V - b) = R T

is:

(

V

-volume,

P

-Pressure,

R

-Universal gas constant,

T

- Temperature)

Q. For an Ideal Gas number of moles per liter in terms of its partial pressure (P), Gas constant (R) and temperature (T) is

\frac{P}{R T}

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The density of a gas is equal to: (P= pressure, V= volume, T= temperature, R= gas constant, n= number of moles and M= molecular weight).

The correct option is B PMwRTAccording to ideal gas equation for monoatomic gas,PV=RTVolume =Mass/MolecularweightDensity(D)PMwD=RTD=PMwRT

The density of a gas is equal to:
( $P =$ pressure, $V =$ volume, $T =$ temperature, $R =$ gas constant, $n =$ number of moles and $M =$ molecular weight).

The correct option is B $\frac{P M_{w}}{R T}$
According to ideal gas equation for monoatomic gas,
$P V = R T$
Volume $= \frac{M a s s / M o l e c u l a r w e i g h t}{D e n s i t y (D)}$
$\frac{P M_{w}}{D} = R T$
$D = \frac{P M_{w}}{R T}$