Mechanical Engineering - Thermodynamics - Discussion

Discussion Forum : Thermodynamics - Section 1 (Q.No. 50)
50.
The universal gas constant of a gas is the product of molecular mass of the gas and the gas constant.
Correct
Incorrect
Answer: Option
Explanation:
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Discussion:
9 comments Page 1 of 1.

RAJA MUTHU KUMAR said:   3 years ago
Gas Constant (R - Any gas) = Universal Gas constant / Molecular mass of that particular gas.

Hence, Universal Gas Constant (Runiv) = Rgas x Mgas.
(1)

Kannan said:   7 years ago
R=Ru/M.
THEN,
Ru=R*M.

Chetan.t said:   8 years ago
M = Ru/R.
Then, Ru = M*R.

Kaustubh said:   10 years ago
M means molecular weight. And m means molecular mass.

Formula is M*R. So statement should incorrect.

DHMS said:   1 decade ago
R1 = R/M from this we get R = R1*M, where R1 = Gas constant.

Puneet kumar said:   1 decade ago
PV = nmRT.

N = Number of moles.
R = Characteristics gas constant.
M = Mass of the gas.
T = Temperature.

Now,

M x n = Molecular mass = M.

M x R = Ru universal gas constant.

Now the equation is written as:

PV = RuT.

RAHUL said:   1 decade ago
pV = mRT ideal gas equation.

m = mass, R = characteristics gas constant, T = temperature, p = pressure and V = volume.

m=n*M where M=molecular mass(mass of one molecules) and n = no of moles.

So pV = nMRT.

pv=n(R)T. (R)=UNIVERSAL GAS CONSTANT.

This proves (R) = MR.

Gpcasramakrishna said:   1 decade ago
pv = nRt.
R = PV/t (n=1);
R = P*M/density*T.
R = (P/T)*M.

Deepak kumar said:   1 decade ago
Ru = Mgas*R.

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