Question

Give correct answer with explanation !!

Answer 1

Option A is not a unit of UGC.

unit of UGC= J/mol-K

So, B, D are correct, one is in SI, another is in mixed unit.

C is Pa m3 /mol-K

Pa = N/m2
so,
C is N/m2 × m3 /mol-K
= N × m /mol-K
= J / mol-K

Now in case of A,

Pa m2 /mol-K
=N/m2 × m2 /mol-K
= N /mol-K

which is not a unit of UGC.

Note: Mixed units are also wrong.

Option A is dimensionally incorrect.
Ans: A

Answer 2

$\huge\mathfrak\red{Answer}$

Pa m²mol^-1k^-1

Option A