Q2 / 125 · BITSAT 2019 · Chemistry

The density of a certain gas at $30^{0} C$ and $768$ torr is $1.35 kg / m^{3}$ , then density of the gas at $STP$ is

Correct answer
A
$1.48 kg / m^{3}$
B
$1.27 kg / m^{3}$
C
$1.35 kg / m^{3}$
D
$1.00 kg / m^{3}$

Solution

Using $PM = dRT$

$\frac{P_{1} M}{P_{2} M} = \frac{d_{1} {RT}_{1}}{d_{2} {RT}_{2}} \frac{768}{760} = \frac{1.35 \times 303}{d_{2} \times 273} d_{2} = \frac{1.35 \times 303 \times 760}{273 \times 768} d_{2} = 1.48 kg / m^{3}$

Hence, the correct answer is option: 'A'.

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The density of a certain gas at 300C and 768 torr is 1.35 kg/m3, then density of the gas at STP is

Solution

More States of Matter Questions

The density of a certain gas at $30^{0} C$ and $768$ torr is $1.35 kg / m^{3}$ , then density of the gas at $STP$ is