Question

Consider a real gas placed in a container. If the intermolecular attractions are supposed to disapppear suddenly which of the following would happen?

• A. Pressure decreases
• B. Pressure increases
• C. Pressure remains unchanged
• D. Has collapses

Answer 1

The correct option is A Pressure decreases

Suddenly if the intermolecular attraction between the molecules disappear the molecules begins to expand $i.e$ they get away from each other resulting in the increase in the volume of the gas. Therefore according to $\text{Boyle's law}$ $P\alpha$$\frac{1}{V}$ hence pressure of an real gas decreases due to increase in its volume.