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

Covalent compounds are generally, Covalent compounds are generally ...... i...

Covalent compounds are generally ...... in water: (1) Soluble                                          (2) Insoluble      (3) Dissociated       (4) Hydrolysed Ans:

Liquid propellants - monopropellants and bipropellants, Liquid propellants ...

Liquid propellants - Monopropellants and Bipropellants These contain an oxidizer like liquid oxygen, nitrogen tetroxide (N 2 O 2 ) or nitric acid and a fuel for example alcohol

Simple molecular orbital description of diborane, Q. Simple molecular orbit...

Q. Simple molecular orbital description? we can give a simple molecular orbital description of bonding in B 2 H 6 as follows. Each boron atom is sp 3 hybrid giving four sp 3

Law of crystallography, I want to know about 3 laws of crystallography,ther...

I want to know about 3 laws of crystallography,there are Law of constancy of inter facial angles,Law of rational indices,Law of symmetry.

Phenol, phenol is more acidic thyan eythanol

phenol is more acidic thyan eythanol

Can you describe cream foams, Q. Can you describe Cream Foams? Cream, w...

Q. Can you describe Cream Foams? Cream, with a fat content of at least 30 per cent, can be beaten to form foam. However, it is observed that a cream with 36 per cent fat can be

#titlespontaneous and non spontaneous reactions, give me assigment of spont...

give me assigment of spontaneous and non spontaneous reactions

Calculate ionic products of water(kw) at a given temperature, It looks at h...

It looks at how the ionic product varies with temperature, and how that ... page, we shall calculate the concentration of hydroxonium ions present in pure water. Kw is called

Uses of aromatic nitro compounds, Uses of Aromatic Nitro Compounds (a) ...

Uses of Aromatic Nitro Compounds (a) Aromatic Nitro Compounds are used on account of their high polarity, aromatic nitro compounds are used as solvents. (b) Nitro compounds

Resonance, resonating structure of p-nitro aniline

resonating structure of p-nitro aniline

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