Question

If $x$ and $y$ are arbitrary extensive variables; then:

• A. $(x+y)$ is an extensive variable
• B. $x/y$ is an intensive variable
• C. $dx/dy$ is an intensive variable
• D. Both (b) and (c)

Answer 1

Answer: (A), (B), (C)

$(x+y)$ is an extensive variable
$x/y$ is an intensive variable
$dx/dy$ is an intensive variable

Extensive properties :- The properties which depend on the quantity of matter.

Intensive properties :- The properties which do not depend on the quantity of matter.

$\therefore$ If $x$ and $y$ are arbitrary extensive variables

then $(x+y)$ is an extensive variable

$x/y$ is an intensive variable

$dx/dy$ is an intensive property.