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

Explain fully the potential health hazards, An analysis of the state of the...

An analysis of the state of the Brazilian chemical industry in 1998 revealed that the actually used technologies were transferred in a period where industrial waste generation, tre

Bond making or breaking, can u tell me what happens with ionic compounds wh...

can u tell me what happens with ionic compounds when heat is given??

Volume of diatomic gas, Volume of diatomic gas is less than the monatomic g...

Volume of diatomic gas is less than the monatomic gas , although diatomic gas has 2 moles ( 2 times atomes) than monoatomic gas ?? Ans) The answer is derived by avogadros law

Chemicals, why does sulfuric acid get hotter when you neutralise it

why does sulfuric acid get hotter when you neutralise it

#coordination compounds, #why is cis-platin preferred for anti-cancer medic...

#why is cis-platin preferred for anti-cancer medicine over trans platin

Quantum mechanical model of the atom, The frequency of strong yellow light ...

The frequency of strong yellow light in the spectrum of sodium is 5.09•10*14s calculated the wavelength of light

Commercial cells, Prepare an assignment on the topic commercial cells

Prepare an assignment on the topic commercial cells

Briefly explain nuclear power, Q. Briefly explain Nuclear Power? Ans. ...

Q. Briefly explain Nuclear Power? Ans. As an energy source, nuclear power is an alternative to fossil fuels. Controlled nuclear chain reactions are used to generate elect

Subliamtion, By who can sublimation be useful? How can it be useful?

By who can sublimation be useful? How can it be useful?

Chemistry collective virtual simulator, Introduction This lab will be ...

Introduction This lab will be performed using the Chemistry Collective Virtual Lab Simulator. The ChemCollective is an award winning chemistry online resource. In addition to

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