IIT-JEE 2006 | Gaseous State Question 17 | Chemistry

IIT-JEE 2006

MCQ (More than One Correct Answer)

+3

-1

The given graph represents the variation of Z (compressibility factor $=\mathrm{PV} / n \mathrm{RT}$ ) versus P , for three real gases $\mathrm{A}, \mathrm{B}$ and C . Identify the only incorrect statement.

IIT-JEE 2006 Chemistry - Gaseous State Question 2 English

A

For the gas A, $a=0$ and its dependence on P is linear at all pressure.

B

For the gas $\mathrm{B}, b=0$ and its dependence on P is linear at all pressure.

C

For the gas C , which is typical real gas for which neither $a=0$ nor $b=0$. By knowing the minima and the point of intersection, with $Z=1, a$ and $b$ can be calculated.

D

At high pressure, the slope is positive for all real gases.