Hikers have noticed that a sealed bag of potato chips puffs up when taken to the top of a mountain. suppose that at the valley floor below, the air pressure is 1.0 atm, temperature is 25°c, and the volume of the chip bag is 0.985 l. at the top of the mountain, the temperature is 22°c and the chip bag has puffed up to 1.030 l. what is the air pressure on top of the mountain? atm

0.95 atm

We are given;

Initial pressure, P1 = 1.0 atm

Initial temperature, T1 =298 K (25°C + 273)

Initial volume, V1 = 0.985 L

Final temperature, T2 = 295 K (22°C + 273)

Final volume, V2 = 1.030 L

We are required to find final air pressure;

Using the combined gas law;

To get, P2 ;

        = 0.95 atm

Therefore, the air pressure at the top of the mountain is 0.95 atm

b is the correct

in chemistry, adhesion and cohesion are attractive forces that exist between molecules. they hold the molecules together from each other. they are different in that adhesive force exists between molecules of different substance while cohesive force happens between molecules of same substance.

adhesion between water and glass causes water molecules at the edge of water and glass interface to climb up the wall in a narrow glass tube. this is called capillary action. cohesion is what gives glass its shape and causes water to form a droplet.