Solution 7:
![\[\mathrm{KH}=1.67 \times 10_{8} \mathrm{~Pa}\]](https://www.learnatnoon.com/s/wp-content/ql-cache/quicklatex.com-38a64cfb2c203227e9c8a203015af110_l3.png "Rendered by QuickLaTeX.com")
![\[\begin{array}{l} \hline P_{A}^{o}=450 \mathrm{~mm}, P_{B}^{o}=700 \mathrm{~mm}, P_{\text {total }}=600 \mathrm{~mm} \\ \text { As Ptotal }=\mathrm{PA}+\mathrm{PB} \\ =X_{A} P_{A}^{o}+\left(1-X_{A}\right) P_{B}^{o} \\ =P_{B}^{o}+\left(P_{A}^{o}-P_{B}^{o}\right) X_{A} \\ \Rightarrow 600=700+(450-700) X_{A} \\ \text { Or X }_{\mathrm{A}}=0.40 \\ \therefore x_{B}=1-X_{A}=1-1.40=0.60 \\ \therefore P_{A}-x_{A} P_{A}^{o}=0.40 \times 450=180 \mathrm{~mm} \\ \therefore=x_{B} P_{A}^{o}=0.60 \times 700=420 \mathrm{~mm} \end{array}\]](https://www.learnatnoon.com/s/wp-content/ql-cache/quicklatex.com-befd34896a6ad74e8618f08041bb8191_l3.png "Rendered by QuickLaTeX.com")
Mole fraction of 
in vapour phase
![\[=\frac{P_{A}}{P_{A}+P_{B}}=\frac{180}{180+420}=0.30\]](https://www.learnatnoon.com/s/wp-content/ql-cache/quicklatex.com-863b3cc4c7d849755ab00f786e871e0b_l3.png "Rendered by QuickLaTeX.com")
And, mole fraction of 
in vapour phase 
Vapour pressure of pure water at 
is 
. 
of urea 
is dissolved in $850
Heny’s law constant for 
in water is 
at . Calculate the quantity of in 
of soda water when packed under 
pressure at .
in water is at . Calculate the quantity of in of soda water when packed under pressure at .Heny’s law constant for in water is at . Calculate the quantity of in of soda water when packed under pressure at .
in water is at . Calculate the quantity of in of soda water when packed under pressure at .
.
)
west of the geographic north. The north tip of the magnetic needle of a dip circle placed in the plane of magnetic meridian points above the horizontal. The horizontal component of the earth’s field is measured to be 
Specify the direction and magnitude of the earth’s field at the location.At a certain location in Africa, a compass points 
and 
carrying currents of 
and 
in the same direction are separated by a distance of 
. Estimate the force on a 
section of wire A.
wire carrying a current of 
is placed inside a solenoid perpendicular to its axis. The magnetic field inside the solenoid is given to be 
. What is the magnetic force on the wire?
and making an angle of 
with the direction of a uniform magnetic field of 
. What is the magnitude of the field 
from the wire?
-turns carrying current 
.
is at distance 
from the wire. Find the force acting on the electron if its velocity is directed towards the wire.