Answer:
The molecules are continually colliding with each other and with the walls of the container. When a molecule collides with the wall, they exert small force on the wall The pressure exerted by the gas is due to the sum of all these collision forces. The more particles that hit the walls, the higher the pressure.
Salt, sugar, baking soda, etc. Some also consider honey, tap water, and vegetable oil as pure substances.
There are 3 significant digits in 5.40.
(To help understand): Sig figs are just a way of simplifying a number.
Answer:
the temperature of the system decreases
