1.

The equation of state for n moles of an ideal gas is PV=nRT, where R is a constant. The SI unit for R is

Answer»

`JK^(-1)` PER molecule
`JK^(-1)mol^(-1)`
`Jkg^(-1)K^(-1)`
`JK^(-1)G^(-1)`

Solution :According to ideal gas equation, `PV=nRT`
implies `R=(PV)/(nT)=("Pressure"xx"volume")/("no. of MOLES"xx"temperature")`
`=(Pam^(3))/(molK)=(Nm^(-2)m^(3))/(molK)=(Nm)/(molK)=Jmol^(-1)K^(-1)`
The S.I. UNIT of R is J `mol^(-1)K^(-1)`.


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