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

Relating Careers to Chemistry, What impact does Chemistry have on linguisti...

What impact does Chemistry have on linguistic anthropology?

Electrochemistry, The W-cell consists of a cadmium amalgam anode and a merc...

The W-cell consists of a cadmium amalgam anode and a mercury-mercurous sulfate cathode with a saturated cadmium sulfate solution as the electrolyte. This cell has been commonly use

What is pseudo first order reaction? explain with examples., The order of a...

The order of a reaction is occasionally changed by conditions. Consider a chemical reaction between two substances where one reactant is there in large excess. During the hydrolysi

Structure of atoms, briefly explain laws of atoms with example

briefly explain laws of atoms with example

Find the ph value, 50ml of 0.1M NH 4 OH ,25ml NH 4 Cl weere used to make a ...

50ml of 0.1M NH 4 OH ,25ml NH 4 Cl weere used to make a buffer . what is the PH is if Pk b is 4.8? Solution) The given buffer is a base buffer [NH4OH] =[(50*0.1)/75] [NH4Cl] =[(

Atomic mass when number of neutrons and electrons alter, Atoms consists of ...

Atoms consists of protons, neutrons and electrons. If the mass of neutrons and electrons were made half and two  times  respectively to their actual masses, then the atomic mass of

Polyglycolic acid or pga - polymers, Polyglycolic acid (PGA) : It is acq...

Polyglycolic acid (PGA) : It is acquired by the chain polymerisation of cyclic dimer of glycolic acid, OH-CH2-COOH.

General , Match the compounds below with the type of bonding each predomina...

Match the compounds below with the type of bonding each predominately exhibit. Question 3 options: NaCO3 NaBr SOCl2 CH4 1. ionic bonding 2. covalent bonding

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