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The pressure exerted by an ideal gas is ...

The pressure exerted by an ideal gas is p=`1/3 M/Vc^2` where the symbols have their usual meanings. Using standard gas equation, pV=nRT we find that `c^2=(3RT)/M` or `C^2 prop T`. Average kinetic energy of translation of 1 mol of gas=`1/2 Mc^2=(3RT)/2`
Average thermal energy of 1 mol of helium at `27^0 C` temperature is (given constant for 1 mol=`8.31 J.mol^-1.K^-1`)

A

`3.74 times 10^3J`

B

`3.74 times 10^-3 J`

C

`3.74 times 10^6 J`

D

`3.74 times 10^-6 J`

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The correct Answer is:
A
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