What do you mean by chain isomerism?

Answer

`AtoR;BtoS;CtoP;DtoQ`

Explanation

`y=(1)/(V^(2)) or sqrt(y)=(1)/(V)`
`P=x and P=("constant")/(V)`
`(A) x=(k)sqrt(y)impliesy=K^(1)x^(2)`
(B) V=kT, `y=V&(1)/(T)=x " ":.y=(k)/(x)`
`(C) P=kT, PT=kT^(2) "or" y=kx`
`(D) V=(C)/(P)impliesy=csqrt(x),y^(2)=cx`