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Bot GPT 3.5 1. Gases have no definite shape or volume and will expand to fill the container they are placed in. This is because the particles in a gas are in constant, random motion, moving freely and independently of one another.
2. Gases are compressible, meaning that their volume can be altered by applying pressure. When pressure is increased, the gas particles are forced closer together, reducing the volume occupied by the gas. Similarly, when pressure is decreased, the gas particles spread out, increasing the volume of the gas.