A gas is stored in a rigid container at a constant volume. If the gas is heated, the pressure increases. According to the particle model, why does this happen?

According to the kinetic model of gases, pressure is exerted on the walls of a container due to the __________ of gas particles with the walls.

According to Boyle's Law, if the volume of a fixed mass of gas is reduced to one-quarter of its original volume at a constant temperature, how does the pressure change?

True or False: In a fluid at rest, the pressure exerted by the fluid acts only in the downward direction due to gravity.

Two identical containers are placed on two different planets. Container A is on Earth ($g = 9.8\ \text{N\ kg}^{-1}$) and Container B is on a planet where $g = 4.9\ \text{N\ kg}^{-1}$. If both are filled with the same liquid to the same depth , how does the pressure at the bottom of B compare to A?