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a mass of H2 molecule is 3.32×10^24 g.if 10^ 23 hydrogen molecule per second Strike 2 cm^2 of wall at angle of 45 degree with normal while moving with a speed of 10^5cm/s then pressure exerted on the wall is nearly??
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The mass of a hydrogen molecule is 3.32×10−27kg. If 1023 hydrogen molecules strike, per second, a fixed wall of area 2 cm2 at an angle of 45o to the normal, and rebound elastically with a speed of 103m/s, then the pressure on the wall is nearly :
Option 1)
4.70×102 N/m2
Option 2)
2.35×103 N/m2
Option 3)
4.70×103 N/m2
Option 4)
2.35×102 N/m2
2
Option 1)
4.70×102 N/m2
Option 2)
2.35×103 N/m2
Option 3)
4.70×103 N/m2
Option 4)
2.35×102 N/m2
2
second no. wala answer h
question ke sath answer h
ohh
As we learnt that
Newton's 2nd Law -





Therefore 
- wherein
 in C.G.S & S.I
Force can be defined as rate of change of momentum.


N= number of molecule striking per second



Option 1)
4.70×102 N/m2
This is incorrect
Option 2)
2.35×103 N/m2
This is correct
Newton's 2nd Law -





Therefore 
- wherein
 in C.G.S & S.I
Force can be defined as rate of change of momentum.


N= number of molecule striking per second



Option 1)
4.70×102 N/m2
This is incorrect
Option 2)
2.35×103 N/m2
This is correct
Answered by
24
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