Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • Engineering
  • Help me answer: A mixture of Hydrogen and Oxygen at one bar pressure contains 20% by weight of Hydrogen. Partial pressure of Hydrogen will be

 A mixture of Hydrogen and Oxygen at one bar pressure contains 20% by weight of Hydrogen. Partial pressure of Hydrogen will be

  • Option 1)

     0.2 bar

  • Option 2)

     0.4 bar

  • Option 3)

     0.6 bar

  • Option 4)

     0.8 bar

 

Answers (1)

best_answer

As we learnt in 

Partial Pressure of a gas in gaseous mixture -

Partial Pressure = (Total Pressure of Mixture) \times (mole fraction of gas)

 

-

 

Weight of H2 = 20 g in 100 g mixture ; Weight of O2  = 80 g

\therefore M\! oles \: o\! f\: H_{2} = \frac{20}{2}= 10                    

\therefore M\! oles \: o\! f\: O_{2} = \frac{80}{32}= \frac{5}{2}

\therefore Total\: M\! oles \:=10+ \frac{5}{2}= \frac{25}{2}

\therefore \: \: \: P_{H_{2}}= P_{T}\times mole \: f\! raction \:o\! f\: H_{2}= 1\times \frac{10}{25/2}= 0.8\: bar


Option 1)

 0.2 bar

Incorrect

Option 2)

 0.4 bar

Incorrect

Option 3)

 0.6 bar

Incorrect

Option 4)

 0.8 bar

Correct

Posted by

Aadil

View full answer

JEE Main high-scoring chapters and topics

Study 40% syllabus and score up to 100% marks in JEE

Similar Questions

Trending Articles/News

anam-khan

JAC Chandigarh Counselling 2025: Round 1 seat allotment result out for BTech admissions
anam-khan

JoSAA round 5 seat allotment result 2025 out on josaa.nic.in
anam-khan

BTech aspirant from north-east or UT? Apply for CSAB NEUT counselling 2025 today

Latest Question