Question

A fixed mass m of a gas is subjected to transformation of states from K to L to M to N and back to K as shown in the given figure. The pair of isochoric processes among the transformation of states is:

• A. K to L and L to M
• B. L to M and N to K
• C. L to M and M to N
• D. M to N and N to K

Answer 1

The correct option is B L to M and N to K

The isobaric process is carried out at constant pressure whereas Isochoric is carried out at constant volume.

From $PV=nRT$, for isochoric process $P\propto T$ and for isobaric process $V\propto T$

$K\to L\Rightarrow$ Isobaric process
$L\to M\Rightarrow$ Isochoric process
$M\to N\Rightarrow$ Isobaric process
$N\to K\Rightarrow$ Isochoric process

Hence, the correct option is B.