Ask a Doubt
Request a call back

Join NOW to get access to exclusive study material for best results

CBSE Class 11-science Answered

4th?
question image
Asked by smanishkumar2002 | 02 Aug, 2018, 09:22: PM
answered-by-expert Expert Answer
(a)
straight R space equals space 8.314 space cross times 10 to the power of 7 ergs divided by straight K divided by mole straight T space equals space 273 space plus space 25 space equals space 298 space straight K straight M space of space electron space equals space 1 over 1837 space straight g As comma space straight u space equals square root of fraction numerator 3 RT over denominator straight M end fraction space end root space equals space space square root of fraction numerator 3 cross times 8.314 cross times 10 to the power of 7 cross times 298 over denominator begin display style bevelled 1 over 1837 end style end fraction end root space equals space 1.16 space cross times 10 to the power of 7 space cm divided by sec rms space velocity space of space UF subscript 6 space equals space space space square root of fraction numerator 3 cross times 8.314 cross times 10 to the power of 7 cross times 298 over denominator begin display style 352 end style end fraction end root space equals space 14.53 space cross times 10 cubed space cm divided by sec
 
(b) 
For space straight H subscript 2 comma space Average space velocity space equals space square root of fraction numerator 8 RT over denominator straight pi space straight M end fraction end root space equals space square root of fraction numerator 8 space straight R space cross times 300 over denominator straight pi cross times 2 end fraction end root space For space CH subscript 4 comma space Average space velocity space equals space space square root of fraction numerator 8 RT over denominator straight pi space straight M end fraction end root space equals space square root of fraction numerator 8 space straight R space cross times 900 over denominator straight pi cross times 16 end fraction end root therefore space fraction numerator Average space velocity space straight H subscript 2 over denominator Average space velocity space CH subscript 4 end fraction space equals space square root of fraction numerator 300 cross times 16 over denominator 900 cross times 2 end fraction end root space equals space fraction numerator 69.28 over denominator 42.42 end fraction space equals space fraction numerator 1.633 over denominator 1 end fraction
Answered by Ramandeep | 06 Aug, 2018, 03:33: PM

Concept Videos

Multiple Choice Questions Practice Test
Answered Unanswered My Questions My Answers
CBSE 11-science - Chemistry
22.4 l of water vapour at ntp when condensed to water occupies an approximate volume of
Asked by rhythmdraco42 | 22 Apr, 2024, 10:43: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
1.0 mole of nitrogen and 3.0 moles of PCl 5 are placed in 100 L vessel heated to 227 o C. The equilibrium pressure is 2.05 atm. Assuming ideal behaviour, calculate the degree of dissociation for PCl 5 and K p for the reaction, PCl 5 (g)⇌PCl 3 (g)+Cl 2 (g).
Asked by vishalrolaniya2005 | 20 Sep, 2023, 08:58: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
The volume of SO2 gas (in l.mol 1) at 0◦C and 1 atmospheric pressure-760mm of Hg is equal to 22.4. Estimate the value of volume of the gas at 20◦C and 1 atmospheric pressure. Use Avogadro’s law of gas.
Asked by amanpatel95698 | 02 Mar, 2022, 12:09: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
an ideal gas mixture contains 4 milimoles of H2 for every mili mole of Ne .The partial pressure of Ne is ?
question image
Asked by pushpakumari291279 | 31 Dec, 2020, 02:02: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
696v7v
question image
Asked by aryanvankar88 | 11 Oct, 2020, 10:07: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
What is a pressure in stp ? What we choose in sum1 atm or 1 bar at stp ?  
Asked by devanshuchhipani | 12 Mar, 2020, 08:42: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
Is pressure directly proportional to temperature and inversly proportional to volume 
Asked by ritua7330 | 01 Sep, 2019, 12:53: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
You are provided with samples of O2,N2,CO2 and CO under similar conditions of temperature and pressure that they contain the same number of molecules represented by letter M . The molecules of O2 occupy the volume of N litres and have a mass of 8g under similar conditions of temperature and pressure A) I) what volume is occupied by M molecules of N2? II) what volume is occupied by 3M molecules of CO ? B) what is the mass of CO2 in grams C) name the law of above questions
Asked by sajidivakaran | 21 Jul, 2019, 09:41: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
The volume occupied by a certain gas was found 5.6 dm3  when the pressure was 2 atmosphere. If the  pressure is increased by 15%, find the new volume of the gas.
Asked by shashank1854 | 28 May, 2019, 04:48: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
At a given temperature the pressure of gas reduces to 75% of its initial value and the volume increases by 40% of its initial value. Find the temperature if the initial temperature was -10 degree Celsius. 
Asked by skkvaish | 23 May, 2019, 08:20: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
My Class Videos Tests ₹ Plans Ask a Doubt
Get Latest Study Material for Academic year 24-25 Click here
×