<u>Answer:</u> Increasing the volume of a given amount of gas at constant temperature causes the pressure to decrease because the molecules are more spread apart.
<u>Explanation:</u>
In a container, when volume is increases, the particles get separated from each other.
The intermolecular spacing between the particles increases, which makes the intermolecular interaction between the particles decrease.
When the attraction between the particles decreases, the pressure on the particles also decreases.
Hence, increasing the volume of a given amount of gas at constant temperature causes the pressure to decrease because the molecules are more spread apart.
