The volume of a gas is increased from 15 l to 45 l while the temperature is held constant. the pressure of the gas will decrease by a factor of?

It decreases by a factor of 1/3.

OK; Boyle's law states that the pressure of a gas and the volume it occupies are inversely proportional, so that means.

V

∝

1

P

Therefore, if the pressure increases by a factor of 3, then at constant temperature, then the volume would decrease by a factor of 1/3, (cut in third).

explanation: it gains negative electrons, therefore becoming negatively charged. as charge cannot be created, nor destroyed, only transferred, this leaves the wool positive. now that they have opposite charges, the two items attract.

both adhesion and cohesion are attractions.

they are different in that adhesion is the force of attraction between the molecules of two different substances, whereas cohesion is the force of attraction between molecules of the same substance.

possible examples include capillary action, in which the adhesion between water and glass causes the water to rise in a narrow tube against the force of gravity.

because of hydrogen bonding, water is extremely cohesive.

this causes molecules on the surface of water to be drawn inward, which is why drops of water form beads on smooth surfaces.

hope this .