Helium balloon at a pressure, Chemistry

Assignment Help:

A 10L helium balloon at a pressure of two bar at 27C. Some O2 is now inside in balloon and final volume is made 30L. the pressure also fell to 1 bar at similar temperature. the partial pressure of O2 at end is?

Solution) For helium.

 n(He)=P(1)V(1)/RT.
for oxygen n(O)=P(2)V(2)/RT

partial pressure of O2= (mole fraction of O2).(Total pressure)

= [  P(2).V(2) / P(2).V(2) + P(1).V(1)  ].(1)
= 1.30 / 1.30 + 2.10
=30/30+20=3/5 bar
Hence 0.6 bar (ANS)


Related Discussions:- Helium balloon at a pressure

Chemical bonding, what are the 10 characteristics of covalent bonding

what are the 10 characteristics of covalent bonding

Electronegativity and bond type, Electronegativity may be described as the ...

Electronegativity may be described as the power of an atom to attract electrons to itself in a chemical bond. It is the most important chemical parameter in calculating the type of

Determine the empirical formula, Given the following mass percent compositi...

Given the following mass percent compositions, determine the empirical formula:  49.5% C; 5.2% H; 28.8% N; 16.5% O.

Organic .., what is the diifference between organic and inorganic chemistry...

what is the diifference between organic and inorganic chemistry

Illustrate process of extrusion, Illustrate process of extrusion. In t...

Illustrate process of extrusion. In this process a round heated billet of metal which is placed in a container is forced out through a die in a press. This process is normally

Organic chemistry, When Ethanoic acid is mixed with methanol what is the en...

When Ethanoic acid is mixed with methanol what is the end product?

Inorganic chemistry, Why do the hydrides of O and F in group 16 and 17 resp...

Why do the hydrides of O and F in group 16 and 17 respectively show abnormally high melting points and boiling points as compared to other hydrides in their respective groups? Expl

Write the neutral calcium atom has a number, Write the neutral calcium atom...

Write the neutral calcium atom has a number The neutral calcium atom has a number of valence electrons euivalent to its group number, that is 2.

Polymers, merits& demerits of free radical mechanism

merits& demerits of free radical mechanism

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd