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BITSAT 2022
MCQ (Single Correct Answer)
+3
-1

The given graph represents the variation of compressibility factor (Z) = $$\frac{pV}{nRT}$$, for three real gases A, B and C. Identify the only incorrect statement.

BITSAT 2022 Chemistry - States of Matter Question 2 English

A
For the gas A, a = 0 and its dependence on p is linear at all pressure.
B
For the gas 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 nor b = 0. By knowing the minima and point of the intersection with Z = 1, a and b can be calculated.
D
At high pressure the slope is positive for all real gases.
2
BITSAT 2021
MCQ (Single Correct Answer)
+3
-1

Equal masses of methane and oxygen are mixed in an empty container at 25$$^\circ$$C. The fraction of the total pressure exerted by oxygen is

A
$${2 \over 3}$$
B
$${1 \over 3} \times {{273} \over {298}}$$
C
$${1 \over 3}$$
D
$${1 \over 2}$$
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