The graph (A) best represents the relationship between the volume and the pressure of a gas.
What is pressure?
The force was applied perpendicular to an object's surface per unit area across which that force is spread is known as pressure. The relationship between pressure and volume can be understand with the aid of ideal gas law.
PV=nRT.
where, P is pressure, V is volume.
It can be seen that when temperature will kept constant then pressure will be inversely proportional to the volume. It can be shown as:
P ∝ 1/V.
Therefore, graph A represent relationship between pressure (P) and volume (V).
To know more about pressure.
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