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Question 20

What would be the SI unit for the quantity pV2T 2/n?


The SI unit of the given quantity is obtained by substituting the SI units of all the quantities in its expression.


The SI unit for pressure, p is Nm–2.

The SI unit for volume, V is m3.

The SI unit for temperature, T is K.

The SI unit for the number of moles, n is mol.

Therefore, the SI unit for quantity pV2T2 / n is given by substituting the above values in the given expression

pV2T2 / n  = (Nm-2) x (m3)2 x K2 / mol

= Nm4K2 mol-1

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