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

Oxidation no., how to count two oxidation no. of Cl in Ca(OCl)Cl?

how to count two oxidation no. of Cl in Ca(OCl)Cl?

Types of interferences - atomic absorption spectrophotometry, Types of inte...

Types of interferences - Atomic absorption spectrophotometry: Three types of interferences viz., chemical, spectral and physical interferences are encountered in AAS. These re

Beer lambartslambart''s law, Plz tell me the units of absorptivity if it ha...

Plz tell me the units of absorptivity if it has any units

Determine the electronic configuration, An element X with the electronic co...

An element X with the electronic configuration  1s 2 , 2s 2 , 2p 6 , 3s 2 ,  would be expected to form the chloride with the formula: (1) XCl 3     (2)  Xcl 2   (3) XCl

Equivalent weight, how to find equivalent weight of a molicule

how to find equivalent weight of a molicule

Calculate the initial radical, (a) Given the values below, calculate the co...

(a) Given the values below, calculate the concentration of benzoyl peroxide required to prepare polystyrene with a number average molar mass of 400,000 by bulk free radical polymer

Please Help!, 2. A mixture is prepared by adding 25.0 mL of 0.185 M Na3PO4 ...

2. A mixture is prepared by adding 25.0 mL of 0.185 M Na3PO4 to 34.0 mL of 0.140 M Ca(NO3)2. (a) What mass of Ca3(PO4)2 will be formed? (b) What will be the concentrations of eac

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