'n' moles of an ideal gas at temperature...

'n' moles of an ideal gas at temperature ‘T’ occupy ‘V’ litres of volume, exerting a pressure of ‘p’ atmospheres. What is its concentration in mole `lit^(-1)` (R = gas constant)

`(RT)/(R)`

`P/(RT)`

`(RT)/(P)`

`(R)/(RT)`

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