Vertical cylinder is filled with 0.10 moles of an ideal gas at standard temperature and pressure, and a 1.4-kg piston is initially held above the gas and seals the gas in the cylinder. uniform gravity acts downward. the seal is frictionless. the resulting trapped column of gas is 2.4 meters high. the piston and cylinder are surrounded by air which is also at standard temperature and pressure.

Several mountains together form a mountain . a few of these combined form a mountain system. several systems combined form a mountain , which can stretch thousands of miles in length.

Because air contracts as it cools, the air pressure inside a freezer is typically lower than on the outside. why do ice cubes inside a freezer tend to shrink over time? a. the ice dissolves oxygen from the air, forming a denser crystalline matrix. b. the ice reacts chemically with carbon dioxide in the air, forming gaseous carbon compounds. c. the ice melts, and then the liquid freezes as ice crystals on the bottom of the freezer. d. the ice sublimes, and then the water vapor deposits as ice crystals on the sides of the freezer.

You can melt ice by applying pressure because the solid/liquid line has a slope.