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Grade: 11


Ans my question and explain it deeply with fundamental ideas.... ..

2 years ago

Answers : (3)

25768 Points
Dear Nilanjan
A perfect gas equation is also known as an ideal gas equation.
and we know , 
Ideal gas equation , PV = nRT 
where P = pressure 
V = volume
n = number of moles 
R = universal gas constant
T = temperature in Kelvin
Given, weight of Hydrogen = 4g 
so, n = number of moles = given weight/molecular weight
= 4g/2g = 2 
Hence, perfect gas equation , PV = 2RT
2 years ago
425 Points
Molecular weight of hydrogen is 2g.
So 2 gm contains 1 mole of hydrogen.
Therefore 4gm contains 4/2=2 mole hydrogen.
Ideal gas equation is PV=nRT.
Here the eq becomes PV=2RT.
Please approve if helped.
2 years ago
3007 Points
mole of hydrogen n = 4/2 = 2
so from ideal gas equation
PV = nRT
PV = 2RT
Hope it clears...........................................................
2 years ago
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