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

Expalin le chteliers principle, Q. Explain Le Chtelier's Principle Ans...

Q. Explain Le Chtelier's Principle Ans. Consider the equilibrium reaction of: A + B -> C + D The forward reaction occurs when A and B combine to form C and D: A +

Inorganic qualitative analysis, use of ammonium chloride in 3 group of basi...

use of ammonium chloride in 3 group of basic radicals

why do soaps not work under hard water , The Ca 2+ and Mg 2+ ions in har...

The Ca 2+ and Mg 2+ ions in hard water form scum with soap. Therefore they don''t form lather and therefore don''t clean the dirt.

Reduction of alkyne - hydrocarbon, Reduction of Alkyne: Alkynes add on ...

Reduction of Alkyne: Alkynes add on hydrogen in existence of appropriate catalysts like finely divided Ni, Pd. Determine if the triple bond is not found at the end of t

Valence electron of pd, Valence electron of pd Pd has ten valence elect...

Valence electron of pd Pd has ten valence electrons in the neutral atom.   There are no charges and no X-type ligands in the complex; as, this is a d 10 complex.

Introduction to nitrogen, Q.Briefly describe about Nitrogen? Ans. ...

Q.Briefly describe about Nitrogen? Ans. Nitrogen is a gas that makes up approximately 79% of the atmosphere. It exists in the form of the diatomic molecule N 2 . In this f

Calculate ionisation potential of the electron, Calculate ionisation potent...

Calculate ionisation potential of the electron in the first exited state of singly ionised Helium atom is given by ionisation of Hydrogen atom to be 13.6 eV. Ans: According to

Molecular formula of gaseous hydrocarbons or eudiometry, Molecular formula ...

Molecular formula of gaseous hydrocarbons   (Eudiometry) Eudiometry is a direct method for calculation of molecular formula of gaseous hydrocarbons without ascertaining the pe

Determine atomic number and mass number, Q. Determine Atomic Number and Mas...

Q. Determine Atomic Number and Mass Number? One of the four naturally taking place isotopes of chromium has a mass number of 53. Determine the number of electrons, protons and

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