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

Phy chem, describe the various types of velocities?

describe the various types of velocities?

Explain globular proteins and fibrous proteins, a. State two main differenc...

a. State two main differences among globular proteins and fibrous proteins. b. Based on their chemical composition, verify how are lipids classified? Give one example of each cl

Name the three ways in which consumer testing can be done, Q. Name the thre...

Q. Name the three ways in which consumer testing can be done? The three ways by which consumer testing can be done are: inhouse laboratory testing, home testing and institution

Define elements and compounds, Q. Define Elements and Compounds? Pure s...

Q. Define Elements and Compounds? Pure substances are categorized into two categories that are elements and compounds. An element is a substance that can't be separated into

Urea or carbamide - carboxylic acids, Urea or Carbamide  - Carboxylic acid...

Urea or Carbamide  - Carboxylic acids Urea may be referred like a diamide of an unstable and dibasic carbonic acid by which both the hydroxyl groups have been changed by -NH 2

What are total variables and degrees of freedom of a system, What are total...

What are total variables and degrees of freedom of a system of two components, when the number of phases is one, two, three etc.?  Ans:  For two - component systems, degree of

Iodoform, what is reaction for propanone in iodoform test

what is reaction for propanone in iodoform test

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