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  • Can someone help me with this, - States of Matter : Gases and liquids - NEET-2

What is the density of N_{2} gas at 227^{o}C and 5.00 atm pressure? (R=0.0821 atm K^{-1} mol^{-1})

  • Option 1)

    0.29 g/ml

  • Option 2)

    1.40 g/ml

  • Option 3)

    2.81 g/ml

  • Option 4)

    3.41 g/ml

 

Answers (1)

best_answer

 

Ideal Gas Law -

PV=nRT

- wherein

P - Pressure

V - Volume

n - No. of Moles

R - Gas Constant

T - Temperature

 

 

Ideal Gas Law in terms of density -

PM=d RT

- wherein

where

d - density of gas

P - Pressure

R - Gas Constant

T - Temperature

M - Molar Mass

 

 

 from ideal gas equation 

Pv=nRT or PM=\rhoRT

\rho=\frac{PM}{RT}=\frac{(5\:atm)\times 28}{(0.0821)\times (500)}=3.41g/ml


Option 1)

0.29 g/ml

This option is incorrect 

Option 2)

1.40 g/ml

This option is incorrect 

Option 3)

2.81 g/ml

This option is incorrect 

Option 4)

3.41 g/ml

This option is correct 

Posted by

Aadil

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