Home
Class 12
CHEMISTRY
5.5 mg of nitrogen gas dissolves in 180 ...

5.5 mg of nitrogen gas dissolves in 180 g of water at 273 K and one atm pressure due to nitrogen gas. The mole fraction of nitrogen in 180 g of water at 5 atm nitrogen pressure is approximately

A

`1xx10^(-6)`

B

`1xx10^(-5)`

C

`1xx10^(-3)`

D

`1xx10^(-4)`

Text Solution

Verified by Experts

The correct Answer is:
C
Solubility of a gas `prop` mole fraction
`n_(N_(2))=(5.5xx10^(-3))/(28)=1.96xx10^(-4)` at 1 atm
Now, p `prop` mole fraction
then at 5 atm, the mole fraction will increase 5 times.
Hence, `5xx1.96xx10^(-4)= 9.8xx10^(-4)~~10xx10^(-4)= 1.0xx10^(-3)`
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • KARNATAKA CET 2013

    KCET PREVIOUS YEAR PAPERS|Exercise Chemistry|58 Videos

  • KARNATAKA CET 2015

    KCET PREVIOUS YEAR PAPERS|Exercise CHEMISTRY|60 Videos

Similar Questions

Explore conceptually related problems

What mass of urea be dissolved in 171 g of water so as to decrease the vapour pressure of water by 5% ?

10.0 g of glucose (pi_(1)) , 10.0 g of (urea (pi_(2)) , and 10.0 g of sucrose (pi_(3)) are dissolved in 250.0 mL of water at 273 K (pi= "osmotic pressure of a solution") . The relationship between the osmotic pressure of the solutions is

Knowledge Check

  • 5.5 mg of nitrogen gas dissolves in 180g of water at 273 K and one atm pressure due to nitrogen gas. The mole fraction of nitrogen in 180 g of water at 5 atm nitrogen pressure is approximately

    A
    ` 1 xx 10^(-5)`
    B
    `1 xx 10^(-4)`
    C
    `1 xx 10^(-6)`
    D
    `1 xx 10^(-3)`

  • 5.85 g of NaCl are dissolved in 90 g of water, the mole fraction of NaCl is :

    A
    0.1
    B
    0.01
    C
    0.2
    D
    0.0196

  • If 22.4 ml of a triatomic gas has a mass of 0.048 g at 273K and 1 atm pressure, then the mass of one atom is:

    A
    `7.9 xx 10^(-23) g `
    B
    `2.6 xx 10^(-23) g `
    C
    `2.4 xx 10^(-22) g `
    D
    `2.4 xx 10^(-23) g `

    • Similar Questions

    Explore conceptually related problems

    0.6 L of an ideal gas weighs 1.80 g at 27^(@)C and 1 atm pressure. Its approximate molar mass is :

    Two moles of a nonvolatile solute are dissolved in 5 moles of water. The vapour pressure of the solute relative to that of water is

    The Henry's law constant for the solubility of nitrogen gas in water at 298 K is 1.0 xx 10^5 a t m . The mole fraction of N_2 in air is 0.8 . The number of moles of N_2 from air dissolved in 10 moles fo water at 298 K and 5 atm. Pressure is :

    A gas is found to have a density of 1.80 g/L at 1 atm pressure and 27^@C . The gas will be

    The Henry's law constant for the solubility of N_2 gas in water at 298 K is 1.0xx 10^5 atm . The mole fraction of N_2 in air is 0.8. The number of moles of N_2 from air dissolved in 10 moles of water at 298 K and 5 atm pressure is

    Home
    Profile