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Q

He said to find out internal energy ^U ?

so i got ans is;

formula ; W=P*(V2-V1)

OPTIONS;A;-500j

B;  -505j

C; +505j

D;1136.25j

MY ANS ; -500J

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A Abhishek Sahu
Answered Mar 03, 2019

It is given that the process is adiabatic

Hence,

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A Ankit Dutt
Answered Apr 04, 2019

According to Bohr's model -

1. Force of attraction between the nucleus and an electron is equal to centripetal force.

2.

n = principal quantum number.

3. Energy can be absorbed or emitted when electron transfers between the orbits
The orbital angular momentum is given by  where l is the azimuthal quantum number for p orbital,

orbital angular momentum =

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A Ankit Dutt
Answered Apr 04, 2019

Moles of urea = Number of molecules/Avogadro number
=> 6.02x10^20/6.02x10^23
=> 10^-3 moles

Now, concentration or molarity = Number of moles/ volume in litre
=> M = (10^-3/100)*1000
=> M = 10^-2 M

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