True or False: All gases exert pressure?

The statement "All gases exert pressure" is true. Gases exert pressure due to the molecules that make up the gas moving and colliding with the walls of their container and with each other. This is a fundamental property of gases, described by the kinetic molecular theory, which states that gas particles are in constant motion and occupy space.

As these particles collide with surfaces, they exert force, which results in pressure. This principle is evident in everyday experiences, such as inflating a balloon or using a pressurized aerosol can. The pressure exerted by a gas can vary depending on factors such as temperature and volume, governed by gas laws like Boyle's Law and Charles's Law. Hence, it is accurate to affirm that all gases, under normal circumstances, will exert pressure.